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Tyre reference

Tyres on a Zero: pressure, compound, range and replacements

Zero’s tyre and cold pressure for every model from 2014 to 2026, with the manual page for each. What happens when the pressure is off, how compound and construction differ, how much range a soft tyre costs, and how the AI ride verdict uses sensor readings. Then 42 replacement tyres with each maker’s own size list.

Last updated: October 19, 2026
~14 min read90 model-year sheets · 42 tyres · 41 maker size lists · MY2014–2026

Your manual comes first. Each pressure here gives the manual page it comes from. Check it against the manual for your model year, and check a replacement tyre’s size, load index and speed rating in the maker’s tables before buying.

TL;DR

  • Zero fits Pirelli on most models (Pirelli Sport Demon, Pirelli Diablo Rosso II, Pirelli Diablo Rosso III, Pirelli MT 60, Pirelli Scorpion Trail II, Pirelli Scorpion MT 90 A/T, CST Urban Travel). The pressure depends on the model and the year: an S from 2023 runs 2.21 bar (32 psi) at the front, an S from 2024 2.48 bar (36 psi), because the tyre changed.
  • Set the pressure cold. A tyre set to 248 kPa at 20 °C reads 224 kPa at 0 °C, below the 228 kPa the ZeroLogs app calls low, and 284 kPa at 50 °C after a ride. Do not let air out of a hot tyre.
  • Low pressure affects handling, heat, wear and load capacity. It also costs range, but less: 15 % under adds about 2.7 % to an SR/F’s Wh/km in town and 0.7 % on the motorway.
  • Grip and rolling resistance are separate. A compound with more wet grip tends to have more rolling resistance; silica is how makers reduce that trade-off.
  • The ride verdict compares sensor readings with your target at 20 °C and limits how much consumption it may blame on the tyres: for 15 % under, 0.7 to 2.7 % of Wh/km.
On this page

What Zero fits, by model and year

Each row comes from the owner manual for that model year. Years with the same tyres and pressures are grouped. The second table gives the manual file and page for every year.

Zero changed the pressures of the S, SR, DS and DSR when it changed their tyres. The XB, the XE and the earliest manuals give only sizes, so those tyres are not named here.

Show pressures in

S 2014

The manual gives the sizes but not the tyre

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim
2.07 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim
2.07 barcold

Owner manual OM-SDS-MY14, p. 87

S 2015–2016

Pirelli Sport Demon

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim
54H · up to 212 kg · up to 210 km/h
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim
66H · up to 300 kg · up to 210 km/h
2.34 barcold

2 owner manuals; pages in the table below

S 2017–2023

Pirelli Diablo Rosso II

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim
2.34 barcold

7 owner manuals; pages in the table below

S 2024–2026

Pirelli Diablo Rosso III

Front
120/70-17
120 mm wide · 70 % profile · 17″ rim
2.48 barcold
Rear
180/55-17
180 mm wide · 55 % profile · 17″ rim
2.48 barcold

3 owner manuals; pages in the table below

SR 2014

The manual gives the sizes but not the tyre

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim
2.07 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim
2.07 barcold

Owner manual OM-SDS-MY14, p. 87

SR 2015–2016

Pirelli Diablo Rosso II

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim · radial
54H · up to 212 kg · up to 210 km/h
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim · radial
66H · up to 300 kg · up to 210 km/h
2.34 barcold

2 owner manuals; pages in the table below

SR 2017–2021

Pirelli Diablo Rosso II

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim
2.34 barcold

5 owner manuals; pages in the table below

SR 2022–2025

Pirelli Diablo Rosso III

Front
120/70-17
120 mm wide · 70 % profile · 17″ rim
2.48 barcold
Rear
180/55-17
180 mm wide · 55 % profile · 17″ rim
2.48 barcold

4 owner manuals; pages in the table below

DS 2014

The manual gives the sizes but not the tyre

Front
100/90-19
100 mm wide · 90 % profile · 19″ rim
2.00 barcold
Rear
130/80-17
130 mm wide · 80 % profile · 17″ rim
1.86 barcold

Owner manual OM-SDS-MY14, p. 87

DS 2015–2023

Pirelli MT 60

Front
100/90-19
100 mm wide · 90 % profile · 19″ rim
57H · up to 230 kg · up to 210 km/h
2.21 barcold
Rear
130/80-17
130 mm wide · 80 % profile · 17″ rim
65H · up to 290 kg · up to 210 km/h
2.34 barcold

9 owner manuals; pages in the table below

DS 2024–2026

Pirelli Scorpion Trail II

Front
120/70-19
120 mm wide · 70 % profile · 19″ rim
2.62 barcold
Rear
170/60-17
170 mm wide · 60 % profile · 17″ rim
2.62 barcold

3 owner manuals; pages in the table below

DSR 2016–2023

Pirelli MT 60

Front
100/90-19
100 mm wide · 90 % profile · 19″ rim
57H · up to 230 kg · up to 210 km/h
2.21 barcold
Rear
130/80-17
130 mm wide · 80 % profile · 17″ rim
65H · up to 290 kg · up to 210 km/h
2.34 barcold

8 owner manuals; pages in the table below

DSR 2024–2025

Pirelli Scorpion Trail II

Front
120/70-19
120 mm wide · 70 % profile · 19″ rim
2.62 barcold
Rear
170/60-17
170 mm wide · 60 % profile · 17″ rim
2.62 barcold

2 owner manuals; pages in the table below

SR/F 2020–2026

Pirelli Diablo Rosso III

Front
120/70-17
120 mm wide · 70 % profile · 17″ rim
2.48 barcold
Rear
180/55-17
180 mm wide · 55 % profile · 17″ rim
2.48 barcold

7 owner manuals; pages in the table below

FX 2014

The manual gives the sizes but not the tyre

Front
90/90-21
90 mm wide · 90 % profile · 21″ rim
2.00 barcold
Rear
110/90-18
110 mm wide · 90 % profile · 18″ rim
1.86 barcold

Owner manual OM-FX-MY14, p. 80

FX 2015–2025

Pirelli Scorpion MT 90 A/T

Front
90/90-21
90 mm wide · 90 % profile · 21″ rim
54S · up to 212 kg · up to 180 km/h
2.00 barcold
Rear
120/80-18
120 mm wide · 80 % profile · 18″ rim
62S · up to 265 kg · up to 180 km/h
2.14 barcold

11 owner manuals; pages in the table below

FXS 2016–2021

Pirelli Diablo Rosso II

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim · radial
54H · up to 212 kg · up to 210 km/h
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim · radial
66H · up to 300 kg · up to 210 km/h
2.34 barcold

6 owner manuals; pages in the table below

SR/S 2020–2025

Pirelli Diablo Rosso III

Front
120/70-17
120 mm wide · 70 % profile · 17″ rim
2.48 barcold
Rear
180/55-17
180 mm wide · 55 % profile · 17″ rim
2.48 barcold

6 owner manuals; pages in the table below

FXE 2022–2025

Pirelli Diablo Rosso II

Front
110/70-17
110 mm wide · 70 % profile · 17″ rim · radial
54H · up to 212 kg · up to 210 km/h
2.21 barcold
Rear
140/70-17
140 mm wide · 70 % profile · 17″ rim · radial
66H · up to 300 kg · up to 210 km/h
2.34 barcold

4 owner manuals; pages in the table below

DSR/X 2023–2026

Pirelli Scorpion Trail II

Front
120/70-19
120 mm wide · 70 % profile · 19″ rim
2.62 barcold
Rear
170/60-17
170 mm wide · 60 % profile · 17″ rim
2.62 barcold

4 owner manuals; pages in the table below

LS1 2026

CST Urban Travel

Front
110/80-14
110 mm wide · 80 % profile · 14″ rim
59S · up to 243 kg · up to 180 km/h
2.00 barcold
Rear
130/60-13
130 mm wide · 60 % profile · 13″ rim
60S · up to 250 kg · up to 180 km/h
2.15 barcold

Owner manual 26_LS1_OM_-_EU_-_English_-_8812142-AG, p. 13

XB 2026

The manual gives the sizes but not the tyre

Front
70/100-19
70 mm wide · 100 % profile · 19″ rim
2.00 barcold
Rear
70/100-19
70 mm wide · 100 % profile · 19″ rim
2.00 barcold

Owner manual XB_OM_-_EU_English-_8812079-AE, p. 12

XE 2026

The manual gives the sizes but not the tyre

Front
70/100-21
70 mm wide · 100 % profile · 21″ rim
2.25 barcold
Rear
90/90-18
90 mm wide · 90 % profile · 18″ rim
2.25 barcold

Owner manual XE_OM_-_EU_English-_8812081-AI, p. 14

Where each figure is printed (90 rows)
Model, yearOwner manualPage
S 2014OM-SDS-MY1487
S 2015OM-SDS-MY15-English89
S 2016OM-SDS-MY16-English-0686
S 2017OM-SDS-MY17-English-AH88
S 2018OM-SDS-MY18-AF90
S 2019OM-SDS-MY19-0490
S 2020OM-SDS-MY20-English-0390
S 202121MY_SDS_OM_-_English-0488
S 202222MY_SDS_OM_-_English-0490
S 202323_SDS_OM_-_English-88-09956-0690
S 202424_FST_Street_OM_-_English_-_EU_-_8811911-AI125
S 202525_FST_Street_EU_-_English-_8811978-AG125
S 202626_FST_Street-_EU_-_English-_8812119-AC125
SR 2014OM-SDS-MY1487
SR 2015OM-SDS-MY15-English89
SR 2016OM-SDS-MY16-English-0686
SR 2017OM-SDS-MY17-English-AH88
SR 2018OM-SDS-MY18-AF90
SR 2019OM-SDS-MY19-0490
SR 2020OM-SDS-MY20-English-0390
SR 202121MY_SDS_OM_-_English-0488
SR 202222MY_FST_OM_-_English-06125
SR 202323_FST_Street_OM_-_English_-_88-09961-AK125
SR 202424_FST_Street_OM_-_English_-_EU_-_8811911-AI125
SR 202525_FST_Street_EU_-_English-_8811978-AG125
DS 2014OM-SDS-MY1487
DS 2015OM-SDS-MY15-English89
DS 2016OM-SDS-MY16-English-0686
DS 2017OM-SDS-MY17-English-AH88
DS 2018OM-SDS-MY18-AF90
DS 2019OM-SDS-MY19-0490
DS 2020OM-SDS-MY20-English-0390
DS 202121MY_SDS_OM_-_English-0488
DS 202222MY_SDS_OM_-_English-0490
DS 202323_SDS_OM_-_English-88-09956-0690
DS 202424MY_FST_ADV_OM_-_English-_EU_-_8811908-AH125
DS 202525_DSRX_EU-English-_8811972-AF125
DS 202626_FST_ADV_-_EU_-_English-_8812128-AC125
DSR 2016OM-SDS-MY16-English-0686
DSR 2017OM-SDS-MY17-English-AH88
DSR 2018OM-SDS-MY18-AF90
DSR 2019OM-SDS-MY19-0490
DSR 2020OM-SDS-MY20-English-0390
DSR 202121MY_SDS_OM_-_English-0488
DSR 202222MY_SDS_OM_-_English-0490
DSR 202323_SDS_OM_-_English-88-09956-0690
DSR 202424MY_FST_ADV_OM_-_English-_EU_-_8811908-AH125
DSR 202525_DSRX_EU-English-_8811972-AF125
SR/F 2020OM-SRF-MY20125
SR/F 202121MY_SRF_OM_-_English-05133
SR/F 202222MY_FST_OM_-_English-06125
SR/F 202323_FST_Street_OM_-_English_-_88-09961-AK125
SR/F 202424_FST_Street_OM_-_English_-_EU_-_8811911-AI125
SR/F 202525_FST_Street_EU_-_English-_8811978-AG125
SR/F 202626_FST_Street-_EU_-_English-_8812119-AC125
FX 2014OM-FX-MY1480
FX 2015OM-XMX-MY15-English85
FX 2016OM-XMX-MY16-English-0484
FX 2017OM-XMX-MY17-English-AE85
FX 2018OM-XMX-MY18-English-AE87
FX 2019OM-XMX-MY19-0489
FX 2020OM-XMX-MY20-English-0487
FX 202121MY_XMX_OM_-_English-0587
FX 202222MY_XMX_OM_-_English-0587
FX 202323_XMX_OM_-_English-88-09949-AI89
FX 202424_XMX_English_-EU_-_8811914-_AG89
FX 202525_XMX_OM_-_EU_English_-_8811991-AE89
FXS 2016OM-XMX-MY16-English-0484
FXS 2017OM-XMX-MY17-English-AE85
FXS 2018OM-XMX-MY18-English-AE87
FXS 2019OM-XMX-MY19-0489
FXS 2020OM-XMX-MY20-English-0487
FXS 202121MY_XMX_OM_-_English-0587
SR/S 2020OM-SRS-MY20131
SR/S 2021OM-SRS-MY21-English-05133
SR/S 202222MY_FST_OM_-_English-06125
SR/S 202323_FST_Street_OM_-_English_-_88-09961-AK125
SR/S 202424_FST_Street_OM_-_English_-_EU_-_8811911-AI125
SR/S 202525_FST_Street_EU_-_English-_8811978-AG125
FXE 202222MY_XMX_OM_-_English-0587
FXE 202323_XMX_OM_-_English-88-09949-AI89
FXE 202424_XMX_English_-EU_-_8811914-_AG89
FXE 202525_XMX_OM_-_EU_English_-_8811991-AE89
DSR/X 202323_DSRX_OM_-_English_-_88-09970-AK125
DSR/X 202424MY_FST_ADV_OM_-_English-_EU_-_8811908-AH125
DSR/X 202525_DSRX_EU-English-_8811972-AF125
DSR/X 202626_FST_ADV_-_EU_-_English-_8812128-AC125
LS1 202626_LS1_OM_-_EU_-_English_-_8812142-AG13
XB 2026XB_OM_-_EU_English-_8812079-AE12
XE 2026XE_OM_-_EU_English-_8812081-AI14

Zero on replacement tyres

The manuals of the SR/F and SR/S (from 2020), the SR (from 2022), the DSR/X (from 2023) and the S, DS and DSR (from 2024) say: “ONLY replace the tires with Zero Motorcycles approved radial tires.” They add that other tyres “may cause adverse handling and performance problems and prevent the correct operation of the ABS and MTC” [1].

Too low or too high

The average pressure in the contact patch is close to the inflation pressure [10], so the patch area is roughly the wheel load divided by the pressure. With 20 % less air the patch is about 25 % larger. The extra area comes from the carcass bending more on every turn of the wheel, which produces heat and wear.

The table quotes the tyre makers and the research. Under-inflation is the more dangerous side, because heat and carcass damage build up. Over-inflation mainly gives a harsher ride and more wear in the centre.

Less air, bigger contact patch20 % under198 kPa1.98 bar≈ 76 cm²Zero’s figure248 kPa2.48 bar≈ 60 cm²15 % over285 kPa2.85 bar≈ 53 cm²Under: more flex, more heat, irregular wear.Over: faster wear in the centre (shaded).
Area ≈ wheel load ÷ pressure, because the average pressure in the contact patch is close to the inflation pressure (Michelin, The tyre: Rolling resistance and fuel savings, 2003, p. 77). The 1.5 kN wheel load is an example; 248 kPa is the SR/F’s cold figure from its manual. Wear notes: Dunlop, Care & Maintenance. The ellipses show area, not the real outline of the patch.
Below and above the cold figure
Contact patch
Below
Larger, because the same load sits on less air
Above
Smaller
Source
[10] p. 77
Handling
Below
“Imprecise cornering … or loss of control”
Above
“A hard ride”
Source
[5]
Stability
Below
Tyre properties change with pressure, and motorcycles have weakly damped vibration modes that are “particularly sensitive to such variations”
Above
Same mechanism
Source
[14]
Heat
Below
“Higher running temperatures”; “the tires will build excessive heat”
Above
No effect stated
Source
[5], [7]
Wear
Below
“Irregular tread wear”; with overloading, “significant causes of cupping and uneven wear”
Above
“Accelerated tire wear in the center of the contact patch”
Source
[5], [6]
Load
Below
“The load-carrying capability of the tires is also reduced by underinflation”
Above
“Does not increase load-carrying capacity”
Source
[5]
Failure
Below
“Severe tire cracking, tread separation, bead unseating from wheel, ‘blowout’”
Above
Use the manual’s cold figure, not the sidewall maximum
Source
[1], [2]
Off road
Below
“Wheel damage … on rocky, rough terrain”; the bike may “squirm or wander” on hard ground
Above
“May damage the tires and cause an unnecessarily harsh ride”
Source
[5]
Energy
Below
On an SR/F, 15 % under adds 2.7 % to Wh/km at 30 km/h and 0.7 % at 130
Above
10 % over saves 1.5 % at 30 km/h
Source
[10] p. 84, [16]

Hot and cold readings

The absolute pressure of the air in a tyre is proportional to its absolute temperature. A tyre set to 248 kPa (the SR/F figure) at 20 °C reads 284 kPa when a ride warms the air to 50 °C, and 224 kPa at 0 °C. The warm reading is normal. The cold one is low, so a tyre set in a heated garage needs topping up in winter.

  • Zero defines cold: “A COLD tire is defined as one that has not been ridden on for at least 3 hours” [1]. Dunlop also says three hours [5]. Michelin says two hours, or under 2 miles at low speed, and asks for a check every two weeks [2].
  • Do not let air out of a hot tyre [2]. Dunlop: the rise “is normal, and the pressure should not be adjusted while the tire is hot” [6].
  • If you have to add air to a hot tyre, Bridgestone says to set 4 psi (28 kPa) above the cold figure and check again when cold [7].
  • Pirelli advises checking more often in the colder months [9].
  • A valve-cap sensor measures the temperature of the valve, not of the air inside. Its cold correction is approximate, and the verdict marks those figures with “≈”.
Pressure rises with temperature2.02.42.83.20°20°40°60°80°air temperature inside the tyre, °CbarZero’s cold figure, 248 kPaapp’s “low”: 228 kPa224248284
Absolute pressure is proportional to absolute temperature: p(T) = (p₂₀ + 101.3) × (T + 273.15) / 293.15 − 101.3, in kPa. The verdict uses the same formula in reverse to bring every sensor reading to 20 °C. Start: the SR/F’s 248 kPa from its manual; the dots are 0, 20 and 50 °C. Michelin and Dunlop both say not to let air out of a hot tyre.

Rolling resistance and range

Rolling resistance is the energy a tyre loses as heat while it deforms at the contact patch. How much it loses depends on the rubber’s loss factor, tan δ [13]. It is given as a coefficient, force per unit of load. Five motorcycle road tyres tested to ISO 18164 measured 8.9 to 13.7 N/kN, and on a petrol motorcycle at 50 km/h a 10 % lower coefficient saved about 1 % of fuel [11]. ISO 18164 itself states that the link between its values and fuel economy is undetermined [12]. We found no tyre maker that publishes the coefficient for its motorcycle tyres.

Rolling resistance changes with pressure roughly as p^-0.4. This is Michelin’s exponent for an average car tyre (−0.2 for a truck tyre). On a car, Michelin gives +6 % rolling resistance at 0.3 bar under and +30 % at 1 bar under [10, pp. 83–84]. There is no published value for motorcycle tyres, so this page, the range calculator and the verdict use the car figure.

The tyres’ share of the energy depends on speed, because air drag grows with the square of speed. On an SR/F the tyres account for about 40 % of Wh/km at 30 km/h and 11 % at 130 km/h [16]. A soft tyre costs some range, less than a headwind or a cold battery does.

Tyres matter most in town0%10%20%30%40%50%205080110steady speed, km/hshare of Wh/kmSR/F 2024DSR/X 2024FX 2020
From the range model behind /range: how much Wh/km changes, in %, for a 1 % change in rolling resistance. SR/F: 40 % at 30 km/h, 11 % at 130. Steady speed, flat road, 20 °C, each bike’s solved drag area and an 85 kg rider. The model’s rolling coefficient (0.012) is inside the 0.0089 to 0.0137 measured on five motorcycle tyres (Wiratkasem & Pattana, 2021). The rest of the energy is mostly air drag, plus electronics and drivetrain losses.
What a soft tyre costs an SR/F-4%0%+4%+8%-30%-10%+10%pressure vs the placard (SR/F: 2.48 bar)change in Wh/km30 km/h90 km/h130 km/h
Same model, both tyres at the same fraction of the placard. Rolling resistance scales with p^−0.4, Michelin’s figure for a car tyre (2003, p. 84). We found no published figure for motorcycle tyres, so read the curves for their size, not their decimals.
How much of a Zero’s energy depends on its tyres (range model)
30 km/h
SR/F share
40 %
SR/F, 15 % under
+2.7 %
SR/F, 30 % under
+6.1 %
FX share
31 %
50 km/h
SR/F share
36 %
SR/F, 15 % under
+2.4 %
SR/F, 30 % under
+5.5 %
FX share
25 %
90 km/h
SR/F share
20 %
SR/F, 15 % under
+1.3 %
SR/F, 30 % under
+3 %
FX share
12 %
130 km/h
SR/F share
11 %
SR/F, 15 % under
+0.7 %
SR/F, 30 % under
+1.7 %
FX share
7 %

Share: how much Wh/km changes, in %, for a 1 % change in rolling resistance. The FX has more air drag than the SR/F, so its tyres are a smaller part of the total.

Compound and cornering

Grip and rolling resistance depend on the same rubber property at different temperatures. Rolling resistance follows tan δ at 50–70 °C (“the lower the tan δ, the lower the rolling resistance”), wet grip follows tan δ at −10 to 0 °C, and lowering the first usually lowers the second [13]. Together with abrasion resistance these three properties are called the “magic triangle”, because “it is complicated to shift all three properties simultaneously to an optimum level” [13].

Silica is the main way makers improve this balance. With a silane coupling agent, “rolling resistance and wet grip … balance out better than carbon black formulations” [13]. Michelin says its silica “improves grip in cooler temperatures and on wet roads, without compromising tread life” [4]. Dunlop uses more silica “to promote compound flexibility at low temperatures” [15]. Carbon black is used for dry grip: Michelin uses it “to increase grip performance” [4].

Most road tyres use different rubber across the tread. The centre covers the straight-line kilometres; the shoulders only touch the road when the bike is leaned.

  • Two compounds: “a harder compound in the center designed to maximize longevity, and a softer compound on the shoulders to enhance grip while cornering” (Michelin 2CT [4]). Pirelli calls the Diablo Rosso III a “bi-compound with wide side soft stripe” [15].
  • Hard under soft: Michelin 2CT+ “extends the harder center compound underneath the softer shoulder compound to increase rigidity” [4].
  • Warm-up: a compound grips best within a temperature range. Continental says its TrailAttack 3 reaches its optimal temperature “within the first 1500 meters” in its own test [15].
  • Range: no maker publishes a rolling coefficient per motorcycle tyre, so the catalogue below ranks categories by tread and construction, not by a measured value.
Rubber across the treadShoulders touch the road only when leaned.Single compoundone rubber acrossTwo compoundshard centre, soft sidesHard under soft2CT+: stiffer leanedMulti-compoundthree or more bandsharder, slower wearsofter, more grip
Schematic. Blue: harder, longer-wearing rubber. Amber: softer, more grip. Michelin describes 2CT as “a harder compound in the center designed to maximize longevity, and a softer compound on the shoulders to enhance grip while cornering”, and 2CT+ as extending “the harder center compound underneath the softer shoulder compound to increase rigidity”. Pirelli’s Diablo Rosso III is a “bi-compound with wide side soft stripe”; Dunlop’s Roadsmart IV rear uses “a long-wearing compound in the center and special lateral compounds on the shoulders”.

Cornering, and why tyres have several compounds

A motorcycle turns by leaning. A leaned, rolling tyre pushes sideways toward the inside of the turn: the inner edge of the tread runs on a smaller circle than the outer edge, so the tyre tries to roll like a cone. Tony Foale calls this “the main mechanism for generating the cornering force on a bike”; the rider corrects the rest with a small steering angle at the bars [17]. The sideways push is called camber thrust. At small angles it grows roughly in proportion to the lean, and how much a tyre gives per degree of lean (its camber stiffness) depends on the inflation pressure and the load [18].

A road tyre has a round profile, so it stays on the road as the bike leans, but with a different strip of tread: the centre when upright, the shoulder at full lean. The centre needs to last; the shoulder needs grip when leaned [4]. One rubber cannot do both equally well, so makers split the tread:

  • Dunlop: “By mixing compounds, the same tyre can display different performance properties at maximum leaning angles than when upright during straight line speed” [15].
  • Michelin 2CT+: “Harder rubber underneath the softer rubber on the shoulders gives better rigidity at lean, for more stability when cornering, especially under strong acceleration or heavy braking” [4].
  • Pirelli Diablo Rosso III: a soft side stripe “offering full grip starting from mid lean angle”. Diablo Rosso IV: “Silica-enriched multi-compound for both front and rear tyres” [15].
  • Bridgestone Hypersport S23: “The brand-new edge compound allows for impressive feedback and cornering performance at high lean angle” [15].
  • Continental ContiRoadAttack 4: a “slick” area on the upper tread shoulder “for first-class cornering grip at high lean angles” [15].
Leaning: patch on the shouldercamber thrustupright: centreload45° lean: shouldercentre: harder rubbershoulder: softer rubber
Schematic, front view, inside of the turn on the left. A round tread stays on the road as the bike leans but touches it with a different strip: the centre when upright, the shoulder at full lean. The leaned tyre pushes toward the inside of the turn, which Tony Foale calls “the main mechanism for generating the cornering force on a bike” (Tyres and how they work). This is why makers put softer rubber on the shoulders.
Pressure matters here too: it changes how much sideways force a tyre gives per degree of lean [18], which is one more reason to run the manual’s cold figure rather than a lower one for “more grip”.

Construction and the sidewall

The carcass is made of layers of cord. In a bias tyre the cords run diagonally and cross, and “the crown and sidewalls of the tire have similar mechanical properties”. In a radial tyre they run at 90° to the direction of travel, with a belt under the tread, so the crown is stiff and the sidewall flexible [3]. Michelin says the radial footprint is “shorter but wider”, that radials are needed for ZR speed ratings, and that bias tyres “are able to carry a greater weight because their sidewalls are more rigid” [3].

Makers also vary the materials: a 0° steel belt (Pirelli Scorpion Trail II, Metzeler Tourance Next 2), an extra aramid ply (Michelin), Lyocell or rayon cords (Pirelli Diablo Rosso IV, Dunlop Trailmax Meridian) [15]. Not every Zero left the factory on radials: the 2015–2016 S had Pirelli Sport Demons, which Pirelli calls an “X-ply” tyre, and Pirelli lists the FX’s Scorpion MT 90 A/T in bias sizes [15]. Construction also changes cornering: bias tyres have been found to give more camber thrust than radials [18].

Which way the cords rundirection of travelBias: size “110/70-17”Cords cross at an angle;crown and sidewall alike.Stiffer sidewall, carries load.Radial: size “120/70 ZR 17”Cords at 90°, a belt underthe tread; soft sidewall.ZR ratings (over 150 mph) need it.Michelin: never mix radial and bias.Dunlop: only where the bike maker fits it.
Schematic, after Michelin’s description (Radial or bias tires?): in a bias tyre the cords run diagonally and cross; in a radial they run at 90° to the direction of travel, with a belt under the tread (grey). Pirelli (Scorpion Trail II, MT 60 RS) and Metzeler (Tourance Next 2) use a 0° steel belt. On the sidewall, R or ZR means radial, B belted bias, a dash bias.
Reading the sidewall120/70 ZR 17 M/C (58W)120width120 mm/70aspectsidewall 70 % of widthZRbuildradial, Z speed class17rim17 inchesM/Ctypemotorcycle tyre58load index236 kg per tyreWspeed270 km/hInstead of ZR: R radial, B belted bias,a dash bias.
Continental lists the ContiRoadAttack 4 front, the SR/F’s front size, as 120/70 ZR 17 M/C (58W). Load index 58 = 236 kg and W = 270 km/h are from Bridgestone’s tables; W in brackets means rated above 270 km/h. The load is per tyre.

Do not mix constructions

Michelin says never to mix radial and bias tyres on one motorcycle [3]. Dunlop allows it only where the motorcycle maker fits or recommends it [5]. A replacement must match or exceed the load index and speed symbol in your manual, and under-inflation lowers the load a tyre can carry [5].

Replacement tyres

42 tyres from 7 makers. For 41 of them the size list comes from the maker’s own page, read on the date shown (one from a dealer), with front or rear where the page says. For 36 the compound and construction lines are quoted from that page. Each category is backed by a quoted line of evidence.

Choose your Zero to see the tyres whose maker lists both of its sizes. This shows what is made in your sizes, not what Zero approves: see the manual quote at the top of the page. Check the load index and speed symbol against your manual. The rolling resistance label of each category is a ranking from tread and construction, not a measured value.

42 of 42 tyres

Bridgestone Battlax Hypersport S23

Sport · rolling medium

Construction by size: radial · 9 sizes on bridgestone.com

Category: “Battlax Hypersport S23” tires.bridgestone.com (maker) (opens in a new tab)

All 9 sizes (checked 2026-10-18)

110/70 R 17 F · 120/70 ZR 17 F · 140/70 R 17 R · 150/60 R 17 R · 160/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/55 ZR 17 R

Continental ContiSportAttack 4

Sport · rolling medium

Construction by size: radial · 6 sizes on continental-tires.com

Category: “sport tire test” continental-tires.com (maker) (opens in a new tab)

All 6 sizes (checked 2026-10-18)

120/70 ZR 17 · 160/60 ZR 17 · 180/55 ZR 17 · 190/50 ZR 17 · 190/55 ZR 17 · 200/55 ZR 17

Metzeler Sportec M9 RR

Sport · rolling medium

Construction by size: radial · 14 sizes on metzeler.com

Category: “in the supersport category” cyclegear.com (retailer) (opens in a new tab)

All 14 sizes (checked 2026-10-18)

110/70 R 17 F · 110/70 ZR 17 F · 120/70 ZR 17 F · 120/70 ZR 19 F · 140/70 R 17 R · 150/60 R 17 R · 150/60 ZR 17 R · 160/60 ZR 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 180/60 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/55 ZR 17 R

Michelin Power 5

Sport · rolling medium

Construction by size: radial · 6 sizes on michelinman.com

  • “MICHELIN 2CT Technology combines two types of rubber on the tread: a harder compound in the center designed to maximize longevity, and a softer compound on the shoulders to enhance grip while cornering.” Michelin (opens in a new tab)

Category: “premium sportbike tire” motodracing.com (retailer) (opens in a new tab)

All 6 sizes (checked 2026-10-18)

120/70 ZR 17 F · 160/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/55 ZR 17 R

Michelin Power 6

Sport · rolling medium

Construction by size: radial · 10 sizes on michelinman.com

  • “MICHELIN 2CT+ Technology is an evolution of MICHELIN 2CT. It extends the harder center compound underneath the softer shoulder compound to increase rigidity and enhance cornering stability.” Michelin (opens in a new tab)
  • “MICHELIN Aramid Shield Technology incorporates an additional aramid ply that wraps around the tire, preventing deformation at high speeds.” Michelin (opens in a new tab)

Category: “latest premium sport bike tire” revzilla.com (retailer) (opens in a new tab)

All 10 sizes (checked 2026-10-18)

110/70 ZR 17 F · 120/70 ZR 17 F · 140/70 ZR 17 R · 150/60 ZR 17 R · 160/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/55 ZR 17 R · 240/45 ZR 17 R

Pirelli Diablo Rosso II

Sport · rolling medium

Construction by size: radial · 13 sizes on pirelli.com

Category: “dual-compouond rear tyre that combines high mileage with excellent grip” pirelli.com (maker) (opens in a new tab)

All 13 sizes (checked 2026-10-18)

100/80 R 17 F · 110/70 R 17 F · 120/70 ZR 17 F · 130/70 R 17 R · 140/60 R 17 R · 140/70 R 17 R · 150/60 R 17 R · 160/60 ZR 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/50 ZR 17 R

Pirelli Diablo Rosso III

Sport · rolling medium

Construction by size: radial · 15 sizes on pirelli.com

Category: “absolute grip and performance in the wet” pirelli.com (maker) (opens in a new tab)

All 15 sizes (checked 2026-10-18)

100/80 R 17 F · 110/70 R 17 F · 110/70 ZR 17 F · 120/65 ZR 17 F · 120/70 R 17 F · 120/70 ZR 17 F · 130/70 ZR 16 F · 140/60 R 17 R · 140/70 R 17 R · 150/60 R 17 R · 150/60 ZR 17 R · 160/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Pirelli Diablo Rosso IV

Sport · rolling medium

Construction by size: radial · 15 sizes on pirelli.com

Category: “Supersport segment” pirelli.com (maker) (opens in a new tab)

All 15 sizes (checked 2026-10-18)

110/70 R 17 F · 110/70 ZR 17 F · 120/60 ZR 17 F · 120/70 ZR 17 F · 140/70 R 17 R · 150/60 R 17 R · 150/60 ZR 17 R · 160/60 ZR 17 R · 180/55 ZR 17 R · 180/60 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R · 200/55 ZR 17 R · 200/60 ZR 17 R · 240/45 ZR 17 R

Continental ContiRoadAttack 4

Sport touring · rolling low

Construction by size: radial · 9 sizes on continental-tires.com

Category: “rivals pure sport tires” continental-tires.com (maker) (opens in a new tab)

All 9 sizes (checked 2026-10-18)

110/80 R 19 · 120/70 ZR 17 · 120/70 ZR 19 · 150/70 R 17 · 160/60 ZR 17 · 170/60 ZR 17 · 180/55 ZR 17 · 190/50 ZR 17 · 190/55 ZR 17

Dunlop Roadsmart IV

Sport touring · rolling low

Construction by size: radial · 8 sizes on dunlopmotorcycletires.com

  • “MT Multi-Tread™ technology in the rear tire uses a long-wearing compound in the center and special lateral compounds on the shoulders for outstanding grip.” Dunlop (opens in a new tab)
  • “Front and rear compounds with Hi Silica X and Fine Carbon increase wet grip and stopping performance.” Dunlop (opens in a new tab)

Category: “class-leading mileage, the handling of a full-on sport tire” dunlopmotorcycletires.com (maker) (opens in a new tab)

All 8 sizes (checked 2026-10-18)

120/70 ZR 17 F/R · 120/70 ZR 18 F/R · 120/70 ZR 19 F · 160/60 ZR 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Metzeler Roadtec 01 SE

Sport touring · rolling low

Construction by size: radial · 7 sizes on metzeler.com

Category: “in the Sport Touring segment” metzeler.com (maker) (opens in a new tab)

All 7 sizes (checked 2026-10-18)

120/70 ZR 17 F · 120/70 ZR 19 F · 160/60 ZR 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Michelin Road 5

Sport touring · rolling low

Construction by size: radial · 7 sizes on michelinman.com

  • “MICHELIN® Road 5 tires offer superior wet weather grip due to patented MICHELIN® Water Sipe Technology™ and our latest 2CT and 2CT+ tread compounds.” Michelin (opens in a new tab)

Category: “wet-weather longevity” revzilla.com (retailer) (opens in a new tab)

All 7 sizes (checked 2026-10-18)

120/60 ZR 17 F · 120/70 ZR 17 F · 150/70 ZR 17 R · 160/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Michelin Road 6

Sport touring · rolling low

Construction by size: radial · 14 sizes on michelinman.com

  • “15% more grip than the MICHELIN® Road 5 tire in wet conditions thanks to 100% MICHELIN® Silica Technology™ tread compounds and a new tread pattern featuring MICHELIN® Water Evergrip Technology™.” Michelin (opens in a new tab)
  • “MICHELIN Water Evergrip Technology features patented sipes that widen as the tire wears, increasing water evacuation capacity.” Michelin (opens in a new tab)

Category: “100% Silica Technology” demon-tweeks.com (retailer) (opens in a new tab)

All 14 sizes (checked 2026-10-18)

110/70 ZR 17 F · 110/80 ZR 19 F · 120/60 ZR 17 F · 120/70 ZR 17 F · 120/70 ZR 18 F · 120/70 ZR 19 F · 140/70 ZR 17 R · 150/60 ZR 17 R · 150/70 ZR 17 R · 160/60 ZR 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Pirelli Angel GT II

Sport touring · rolling low

Construction by size: radial · 10 sizes on pirelli.com

Category: “The Sport Touring tyre” pirelli.com (maker) (opens in a new tab)

All 10 sizes (checked 2026-10-18)

120/60 ZR 17 F · 120/70 R 19 F · 120/70 ZR 17 F · 150/70 ZR 17 R · 160/60 ZR 17 R · 170/60 R 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/50 ZR 17 R · 190/55 ZR 17 R

Pirelli Sport Demon

Street · rolling low

Construction by size: bias · 28 sizes on pirelli.com

Category: “an x-ply tyre for touring motorcycles” pirelli.com (maker) (opens in a new tab)

All 28 sizes (checked 2026-10-18)

100/80-17 F · 100/90-18 F · 100/90-19 F · 110/70-16 F · 110/70-17 F · 110/80-17 F/R · 110/80-18 F · 110/90-16 F · 110/90-18 F · 120/70-16 F · 120/70-17 F · 120/80-16 F · 120/80-17 R · 120/90-18 R · 130/70-16 R · 130/70-17 R · 130/70-18 R · 130/80-17 R · 130/80-18 R · 130/90-16 R · 130/90-17 R · 140/70-15 R · 140/70-17 R · 140/70-18 R · 150/70-16 R · 150/70-17 R · 150/80-16 R · 90/90-17 F

Bridgestone Battlax Adventure A41

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 19 sizes on bridgestone.com

Category: “Adventure Touring is all about exploring” tires.bridgestone.com (maker) (opens in a new tab)

All 19 sizes (checked 2026-10-18)

100/90-19 F · 110/80 R 18 F · 110/80 R 19 F · 120/70 R 15 F · 120/70 R 19 F · 120/70 ZR 17 F · 120/70 ZR 19 F · 130/80 R 17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 150/70 ZR 18 R · 160/60 ZR 17 R · 170/60 R 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/55 R 17 R · 190/55 ZR 17 R · 90/90-21 F

Continental ContiTrailAttack 3

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 19 sizes on continental-tires.com

  • “Built to ensure the highest constant level of performance even after thousands of kilometers due to a mix of MultiGrip, carcass construction and pattern design.” Continental (opens in a new tab)

Category: “designed for 90% street and 10% off-road” adventuremotorcycle.com (review) (opens in a new tab)

All 19 sizes (checked 2026-10-18)

100/90-19 · 110/80 R 19 · 120/70 R 19 · 120/70 ZR 17 · 120/70 ZR 19 · 120/90-17 · 130/80 R 17 · 130/80-17 · 140/80 R 17 · 140/80-18 · 150/70 R 17 · 150/70 R 18 · 150/70 ZR 18 · 160/60 ZR 17 · 170/60 R 17 · 170/60 ZR 17 · 180/55 ZR 17 · 190/55 ZR 17 · 90/90-21

Dunlop Trailmax Meridian

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 12 sizes on dunlop-moto.com

  • “Rayon Ply tire casing handles heat better, minimising warm up times and achieving the more efficient use of the tread compound” Dunlop (opens in a new tab)

Category: “also allows you to venture off-road” dunlop-moto.com (maker) (opens in a new tab)

All 12 sizes (checked 2026-10-18)

100/90-19 · 110/80 R 19 · 120/70 ZR 19 · 120/80-18 · 120/90-17 · 130/80 R 17 · 130/80-17 · 140/80 R 17 · 150/70 R 17 · 150/70 ZR 18 · 170/60 ZR 17 · 90/90-21

Metzeler Tourance Next 2

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 12 sizes on metzeler.com

Category: “Enduro Street motorcycles” metzeler.com (maker) (opens in a new tab)

All 12 sizes (checked 2026-10-18)

100/90-19 F · 110/80 R 19 F · 120/70 R 19 F · 120/70 ZR 19 F · 130/80 R 17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 150/70 ZR 18 R · 170/60 R 17 R · 170/60 ZR 17 R · 90/90-21 F

Michelin Anakee Adventure

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 10 sizes on michelinman.com

Category: “Trail” range michelin.com (maker) (opens in a new tab)

All 10 sizes (checked 2026-10-18)

100/90-19 F · 110/80 R 19 F · 120/70 R 19 F · 130/80 R 17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 160/60 R 17 R · 170/60 R 17 R · 90/90-21 F

Michelin Anakee Road

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 8 sizes on michelinman.com

  • “MICHELIN Reinforced Radial-X EVO Technology is an evolution of Radial-X EVO. It incorporates an additional ply in the carcass to provide enhanced stability, responsiveness, and comfort.” Michelin (opens in a new tab)

Category: “90/10 Adventure Touring tire” revzilla.com (retailer) (opens in a new tab)

All 8 sizes (checked 2026-10-18)

110/80 R 19 F · 120/70 R 19 F · 120/70 ZR 19 F · 150/70 R 17 R · 150/70 R 18 R · 170/60 R 17 R · 170/60 ZR 17 R · 90/90-21 F

Pirelli Scorpion Trail II

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 14 sizes on pirelli.com

  • “Technology with steel belt at 0° ensuring greater stability and excellent handling on all types of road surface, even at full load” Pirelli (opens in a new tab)

Category: “adventure-touring and Enduro street motorcycles” pirelli.com (maker) (opens in a new tab)

All 14 sizes (checked 2026-10-18)

110/80 R 19 F · 120/70 R 19 F · 120/70 ZR 17 F · 120/70 ZR 19 F · 130/80 R 17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 160/60 ZR 17 R · 170/60 R 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 190/55 ZR 17 R · 90/90-21 F

Pirelli Scorpion Trail III

Adventure (road-biased) · rolling low to medium

Construction by size: bias, radial · 18 sizes on pirelli.com

Category: “for Enduros” pirelli.com (maker) (opens in a new tab)

All 18 sizes (checked 2026-10-18)

100/90-18 F · 100/90-19 F · 110/80 R 18 F · 110/80 R 19 F · 120/70 R 19 F · 120/70 ZR 17 F · 120/70 ZR 19 F · 120/90-17 R · 130/80 R 17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 ZR 18 R · 160/60 R 17 R · 160/60 ZR 17 R · 170/60 R 17 R · 170/60 ZR 17 R · 180/55 ZR 17 R · 90/90-21 F

Bridgestone Battlax Adventurecross AX41

Dual sport (knobbly) · rolling high

Construction by size: belted bias, bias · 18 sizes on bridgestone.com

Category: “powerful off-road performance” bridgestone.com (maker) (opens in a new tab)

All 18 sizes (checked 2026-10-18)

100/90-18 F · 100/90-19 F · 110/80 B 19 F · 120/70 B 19 F · 120/80-18 R · 120/90-16 R · 120/90-17 R · 120/90-18 R · 130/80 B 17 R · 130/80-17 R · 130/80-18 R · 140/80 B 17 R · 150/70 B 17 R · 150/70 B 18 R · 170/60 B 17 R · 80/100-21 F · 90/100-19 F · 90/90-21 F

Continental TKC 70

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 14 sizes on continental-tires.com

Category: “radial and diagonal design” continental-tires.com (maker) (opens in a new tab)

All 14 sizes (checked 2026-10-18)

100/90-19 · 110/80 R 18 · 110/80 R 19 · 120/70 R 19 · 120/70 ZR 17 · 120/90-17 · 130/80-17 · 140/80 R 17 · 150/70 R 17 · 150/70 R 18 · 160/60 ZR 17 · 170/60 R 17 · 180/55 ZR 17 · 90/90-21

Continental TKC 80

Dual sport (knobbly) · rolling high

Construction by size: belted bias, bias · 16 sizes on continental-tires.com

Category: “strongest off-road motorcycle tire” continental.com (maker) (opens in a new tab)

All 16 sizes (checked 2026-10-18)

100/90-19 · 110/80 B 19 · 110/80-18 · 120/70-17 · 120/70-19 · 120/90-17 · 120/90-18 · 130/80-17 · 140/80-17 · 140/80-18 · 150/70 B 17 · 150/70 B 18 · 170/60 B 17 · 180/55 B 17 · 80/90-21 · 90/90-21

Dunlop Trailmax Mission

Dual sport (knobbly) · rolling high

Construction by size: belted bias, bias · 7 sizes on dunlopmotorcycletires.com

  • “New compounds deliver the perfect balance between road and off-road performance and deliver class-leading mileage performance.” Dunlop (opens in a new tab)

Category: “this 50/50 tire” dunlopmotorcycletires.com (maker) (opens in a new tab)

All 7 sizes (checked 2026-10-18)

110/80-19 F · 120/70 B 19 F · 140/80 B 18 R · 150/70 B 17 R · 150/70 B 18 R · 170/60 B 17 R · 90/90-21 F

Metzeler Karoo 4

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 12 sizes on metzeler.com

Category: “Adventure Bikes and Maxi Enduro” metzeler.com (maker) (opens in a new tab)

All 12 sizes (checked 2026-10-18)

100/90-19 F · 110/80 R 19 F · 120/70 R 19 F · 130/80 R 17 R · 140/80 R 17 R · 140/80-18 R · 150/70 R 17 R · 150/70 R 18 R · 150/70-17 R · 150/70-18 R · 170/60 R 17 R · 90/90-21 F

Metzeler Karoo Street

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 16 sizes on metzeler.com

  • “It features a multi-radius profile with an increased width and overall length of the contour to increase the surface of the footprint area as well as grip and stability when leaning.” Metzeler (opens in a new tab)

Category: “cross-country appeal” metzeler.com (maker) (opens in a new tab)

All 16 sizes (checked 2026-10-18)

100/90-19 F · 110/70-17 F · 110/80 R 19 F · 120/70 R 17 F · 120/70 R 19 F · 120/70-15 F · 120/80-18 R · 130/80 R 17 R · 140/70-14 R · 140/70-17 R · 140/80 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 170/60 R 17 R · 180/55 R 17 R · 90/90-21 F

Michelin Anakee Wild

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 13 sizes on michelinman.com

  • “Stability and rider comfort come together thanks to MICHELIN Radial-X Technology, available for the first time on a knobby tire range.” Michelin (opens in a new tab)

Category: “aggressive 50/50 design” revzilla.com (retailer) (opens in a new tab)

All 13 sizes (checked 2026-10-18)

110/80 R 19 F · 110/80-18 R · 120/70 R 19 F · 120/80-18 R · 130/80-17 R · 130/80-18 R · 140/80-17 R · 140/80-18 R · 150/70 R 17 R · 150/70 R 18 R · 170/60 R 17 R · 80/90-21 F · 90/90-21 F

Pirelli MT 60

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 8 sizes on pirelli.com

Category: “specifically for Enduro motorbikes” pirelli.com (maker) (opens in a new tab)

All 8 sizes (checked 2026-10-18)

100/90-19 F · 110/80 R 18 R · 120/80 R 18 R · 120/90 R 17 R · 130/80 R 17 R · 140/80 R 17 R · 90/90-19 F · 90/90-21 F

Pirelli MT 60 RS

Dual sport (knobbly) · rolling high

Construction by size: belted bias, radial · 10 sizes on pirelli.com

Category: “upgrading the road performance of knobbly tyres” pirelli.com (maker) (opens in a new tab)

All 10 sizes (checked 2026-10-18)

110/70 R 17 F · 110/80 R 18 F · 120/70 ZR 17 F · 120/70 ZR 18 F · 130/90 B 16 F · 150/60 R 17 R · 150/80 B 16 R · 160/60 R 17 R · 180/55 R 17 R · 180/55 ZR 17 R

Pirelli Scorpion MT 90 A/T

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 7 sizes on pirelli.com

  • “Compound with balanced silica content capable of ensuring high mileage and better grip on both dry and wet surfaces” Pirelli (opens in a new tab)

Category: “daily urban use and to adventure” pirelli.com (maker) (opens in a new tab)

All 7 sizes (checked 2026-10-18)

110/80-18 F/R · 120/80-18 R · 120/90-17 R · 140/80-18 R · 150/70 R 18 R · 80/90-21 F · 90/90-21 F

Pirelli Scorpion Rally STR

Dual sport (knobbly) · rolling high

Construction by size: bias, radial · 20 sizes on pirelli.com

  • “A new compound, with a high content of silica, offers increased grip on both dry and wet surfaces, stability and a superior resistance to abrasion” Pirelli (opens in a new tab)

Category: “looking for a knobbly tire” pirelli.com (maker) (opens in a new tab)

All 20 sizes (checked 2026-10-18)

100/90-19 F · 110/70 R 17 F · 110/80 R 18 F · 110/80 R 19 F · 110/80-14 F · 120/70 R 17 F · 120/70 R 18 F · 120/70 R 19 F · 120/90-17 R · 130/70-13 R · 130/80 R 17 R · 140/70 R 18 R · 140/80 R 17 R · 150/60 R 17 R · 150/70 R 17 R · 150/70 R 18 R · 160/60 R 15 R · 170/60 R 17 R · 180/55 R 17 R · 90/90-21 F

Dunlop Geomax MX33

Off-road competition · rolling very high

Construction by size: bias · 2 sizes on dunlopmotorcycletires.com

Category: “motocross tire” revzilla.com (retailer) (opens in a new tab)

All 2 sizes (checked 2026-10-18)

70/100-21 F · 90/100-18 R

Michelin Starcross 5

Off-road competition · rolling very high

Construction by size: bias · 4 sizes on michelinman.com

Category: “roughest terrains” m.motorcycle.michelinman.com (maker) (opens in a new tab)

All 4 sizes (checked 2026-10-18)

70/100-17 F · 70/100-19 F · 90/100-14 R · 90/100-16 R

Pirelli Scorpion XC Mid Hard

Off-road competition · rolling very high

Construction by size: bias · 5 sizes on pirelli.com

Category: “desert racing” pirelli.com (maker) (opens in a new tab)

All 5 sizes (checked 2026-10-18)

100/100-18 R · 110/100-18 R · 120/100-18 R · 140/80-18 R · 80/100-21 F

Michelin Power Supermoto

Track (supermoto) · rolling not a road figure

Construction by size: radial · 3 sizes on michelinman.com

  • “MICHELIN Carbon Black Technology uses a rubber compound infused with carbon black to optimize dry grip and tire longevity during sporty riding.” Michelin (opens in a new tab)

Category: “Radial NHS Motorcycle Tire for Race Track Applications” discounttirecenters.com (retailer) (opens in a new tab)

All 3 sizes (checked 2026-10-18)

120/75 R 16 F · 120/80 R 16 F · 160/60 R 17 R

CST Urban Travel

Scooter / small wheels · rolling low

Construction by size: bias · 23 sizes on tyretectrading.co.uk

Category: “city riders” tyretectrading.co.uk (retailer) (opens in a new tab)

All 23 sizes (checked 2026-10-18)

100/80-10 · 100/80-14 · 100/80-16 · 100/90-10 · 100/90-14 · 110/70-12 · 110/70-13 · 110/80-12 · 110/80-14 · 110/90-13 · 120/70-10 · 120/70-13 · 120/70-14 · 120/70-15 · 120/80-16 · 130/60-13 · 130/70-12 · 130/70-13 · 130/70-16 · 140/70-13 · 140/70-14 · 90/80-16 · 90/90-10

Michelin Pilot Street 2

Scooter / small wheels · rolling low

Construction by size: belted bias, bias · 23 sizes on michelinman.com

Category: “scooters and small bikes” cyclegear.com (retailer) (opens in a new tab)

All 23 sizes (checked 2026-10-18)

100/80-17 F/R · 100/90-10 F/R · 100/90-14 R · 110/70-17 F · 110/80-14 F/R · 120/70-12 F/R · 120/70-14 R · 130/70-12 F/R · 130/70-17 R · 140/70-17 R · 150/60 B 17 R · 60/90-17 F · 70/90-14 F · 70/90-17 F/R · 80/90-14 F/R · 80/90-16 R · 80/90-17 F/R · 90/80-14 F/R · 90/80-17 F/R · 90/90-10 F/R · 90/90-12 F/R · 90/90-14 F/R · 90/90-18 F/R

Tyre pressure sensors (TPMS)

A Zero has no tyre pressure sensors, and its logs contain nothing about the tyres. Aftermarket Bluetooth sensors fill that gap: two caps that replace the valve caps, or sensors fitted inside the wheel on the valve. The ones listed below need no pairing. Each sensor broadcasts its reading in its Bluetooth advertisement and “cannot be connected or paired to”, so a phone only has to listen [19].

There is no single format. Sensors come in families, each with its own data layout. The open-source project bkbilly/tpms_ble, a Home Assistant integration under the MIT licence, decodes eight of them and tells them apart by the Bluetooth company id, a service id or the device name [20]. ra6070/BLE-TPMS, also MIT, documents the type A format byte by byte with a real frame [19]. The ZeroLogs app’s decoder is written from these two projects.

A valve cap measures the temperature of the valve, outside the tyre, not the air inside. The app labels it as the sensor’s temperature, and the cold correction made with it is approximate.

The eight sensor types decoded by bkbilly/tpms_ble
A
Recognised by
Bluetooth company id 0x0100
Products named by the project
Generic valve-cap kits (product link in the project). Supported by the ZeroLogs app, in closed test
B
Recognised by
Service UUID 0x27A5
Products named by the project
Generic kits (product link in the project)
C
Recognised by
Company id 0x0828
Products named by the project
Michelin TMS
D
Recognised by
Company id 0x00AC
Products named by the project
WODHMIEY, ITPMS (K)
E
Recognised by
Company id 0x0127, or service data 0x012A
Products named by the project
Salutica FOBO
F
Recognised by
Service UUID 0xA827
Products named by the project
bekubee HRTPMS (AotuLink)
G
Recognised by
Device name starting “AI-”
Products named by the project
Ai TPMS AI-8000
H
Recognised by
Service UUID 0xA828
Products named by the project
TC.TPMS, WonVon motorcycle screen

Type letters and identifiers as in the project’s README and manifest, read on 2026-10-19 [20]. The ZeroLogs app reads type A only for now; further types will be added one at a time, each checked on sensors we have recorded ourselves.

Tyre sensors in the ZeroLogs app

Type A sensors are supported in the ZeroLogs Android app, which is in closed test (see /beta). The decoder follows the published format; we are checking it against our own sensors before the public release.

  • The app listens while it records a ride, with or without the bike connected, and keeps listening with the screen off.
  • Each type A sensor carries the wheel it was made for, so the app proposes front and rear. You can swap them in one tap.
  • The dash shows a small tyre indicator only when sensors are paired; tapping it opens pressure, sensor temperature and battery for each wheel.
  • It warns when a tyre is 8 % under its cold target (15 % is an alert), on a drop of 20 kPa within 5 minutes, when the sensor flags a leak four times in a row, and when a sensor battery is under 20 %.
  • Every new reading is stored with the ride. The ride page draws both tyres, and the bike page shows the cold pressure day by day, the rate of loss and the date the tyre will be low (next section).
Join the Android app’s closed test
Before buying a kit, a Bluetooth scanner app such as nRF Connect shows a type A sensor as a device with “TPMS” in its name and manufacturer data from company 0x0100.

How the AI verdict uses tyre data

A Zero’s logs contain nothing about its tyres. The verdict uses two inputs: the target pressure, and the readings of Bluetooth valve-cap sensors when they are paired in the ZeroLogs app. The thresholds in the table are read from the code when this page is built.

  1. 1Target, per wheel: the pressure in your bike profile, in your unit. If there is none, Zero’s cold figure for your model year from the first table (or the nearest year on file, which the verdict states). If there is none of either, the verdict is told the pressure is unknown. There is no generic default. An old 29/32 psi default was removed because it was 9 psi below a DSR/X’s front figure.
  2. 2Readings: each new sensor reading is sent with the next phone sample and stored by bike, wheel and time. Only the bike’s owner can read them.
  3. 3Cold correction: every reading is converted to 20 °C with the gas law above, using the sensor’s temperature, and marked “≈”.
  4. 4Per ride and wheel: the cold average, the minimum and maximum, the deviation from the target in %, and any leak flagged by the sensor.
  5. 5Energy limit: the deviation d gives a rolling resistance change of (1 + d)^-0.4 − 1, multiplied by the 10–40 % share of Wh/km. For a tyre 15 % under, rolling resistance is 6.7 % higher and Wh/km at most 0.7 to 2.7 % higher. The model is told not to attribute more than that to the tyres. Within 3 % of the target there is no energy line.
  6. 6Over months, on the bike page: the first reading of each day (the pressure before riding), the inflations, the loss rate since the last one (least squares), whether it is normal seepage, and the date it will reach the low threshold at that rate.
Thresholds used by the verdict, read from the code
Reference temperature
Value
20 °C
Reason
Readings are compared as cold figures
Low
Value
8 % under the cold target
Reason
The app’s alert threshold
Inflation detected
Value
cold figure up 10 kPa or more from one day to the next
Reason
More than the weather moves it
Loss rate
Value
needs 3 days over at least 7
Reason
Fewer points fit noise
Normal seepage
Value
up to 3.5 kPa a week (about 15 kPa a month)
Reason
Air diffuses through rubber
Fast loss
Value
over 7 kPa a week
Reason
Usually a valve, a puncture or the bead
Rolling resistance
Value
proportional to p^-0.4
Reason
[10] p. 84
Share of Wh/km
Value
10–40 %
Reason
Range model, 130 km/h down to town speeds [16]
Example of the tyre line in the verdict prompt
Tyres: F 2.48 bar / R 2.48 bar (Zero's owner manual, SR/F 2024); MEASURED by tyre sensors this ride:
F ≈2.45 bar cold (-1 % vs 2.48 bar), R ≈2.11 bar cold (-15 % vs 2.48 bar)
; rolling-resistance physics puts that at +0.7…+2.7 % Wh/km at most; do NOT attribute more of the consumption than this to the tyres

One line in the prompt, wrapped here. The numbers are an example, not a real ride.

Not yet used

The tyre model does not change the verdict yet: a knobbly and a touring tyre get the same energy share until the catalogue category is connected (planned). The riding-style radar has no tyre axis. A correlation between a ride’s consumption and its tyres is never reported as the cause.

Frequently asked questions

What tyre pressure should my Zero run?

The cold figure in the owner manual for your model and year. The first table on this page lists them with the manual page. The figure changed when Zero changed tyres, so use the one for your year.

What happens if my tyres are under-inflated?

The carcass bends more. Dunlop lists imprecise cornering, higher running temperatures, irregular wear and lower load capacity; Zero’s manual warns of cracking, tread separation and blowouts. Range drops too: about 2.7 % more Wh/km in town on an SR/F at 15 % under.

Does higher pressure give more range?

Very little. 10 % over saves about 1.5 % of an SR/F’s Wh/km in town and 0.4 % on the motorway, and Dunlop says over-inflation gives a hard ride and faster wear in the centre.

Why is my tyre pressure higher after riding?

The air is warmer. A tyre set to 248 kPa at 20 °C reads about 284 kPa at 50 °C. This is normal. Michelin and Dunlop both say not to let air out of a hot tyre.

Why does my tyre read low on a cold morning?

248 kPa set at 20 °C becomes 224 kPa at 0 °C. If you set the pressure in a warm garage, add air for cold weather.

Can I fit a different tyre?

The manuals of the SR/F, SR/S, SR, DSR/X and, from 2024, the S, DS and DSR ask for Zero-approved radial tyres and warn that others can affect ABS and traction control. The catalogue shows which tyres are made in your two sizes. The load index and speed symbol must be at least those in your manual.

Do knobbly tyres reduce range?

On tarmac they have more rolling resistance than road tyres, because the tread blocks flex. No maker publishes the figure, so this page gives no number. The effect is largest at low speed, where the tyres are the largest share of the energy.

What is a dual-compound tyre?

A tyre with harder, longer-wearing rubber in the centre and softer rubber on the shoulders, which touch the road only when the bike is leaned (Michelin 2CT, Pirelli bi-compound).

Which tyre pressure sensors work with ZeroLogs?

Bluetooth sensors of type A (company id 0x0100, sold mostly as valve-cap kits), in the Android app’s closed test. The other seven types decoded by the open-source project bkbilly/tpms_ble are not supported yet. A Zero itself has no tyre sensors.

Does the AI verdict use my tyre pressure?

Yes. It uses your target (profile, otherwise Zero’s manual) and, with tyre sensors, the measured cold pressures of the ride. It may attribute at most the physical share of consumption to them: for 15 % under, 0.7 to 2.7 % of Wh/km.

Tyres and pressures come from Zero’s owner manuals (90 model-year sheets, 2014–2026). Maker pages, size lists and quotes were read on 2026-10-18 and can change. Energy figures come from the site’s range model, whose assumptions are on /range.

Sources:

Torque SpecsMaintenance

An independent reference, not affiliated with or endorsed by Zero Motorcycles, Inc. or any tyre maker. Your owner manual and the tyre maker’s size and load tables take precedence, as does a qualified tyre fitter.