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Zero SR/S
Street · 2020–present

Zero SR/S

Faired sport tourer

Gen 3· FST · Cypher III· 2020–present
111
CV
190
Nm
200
km/h
17.3
kWh
2.12 kg/CVpower-to-weight (latest year)
Read the Zero SR/S owner's guide
Charging, ride modes, maintenance, warning lights & care: everything from the manual, in plain language.

Motor & performance

Motor
Z-Force 75-10 enhanced thermal efficiency, passively air-cooled, interior permanent magnet AC motor
Peak power
83 kW / 111 CV
Peak torque
190 Nm
Top speed
200 km/h
Power-to-weight
2.12 kg/CV

Battery & charging

Capacity (max)
17.3 kWh
Capacity (nominal)
15.1 kWh
Chemistry
Li-Ion (Z-Force Intelligent Power Pack)
Onboard charger
6.6 kW
Charge time
230V Mode 2: 4.9 h to 100% / 3.9 h to 95%; Mode 3 single-phase: 4.9 h to 100% / 3.9 h to 95%; Mode 3 3-phase: 2.7 h to 100% / 2.0 h to 95%

Drivetrain & belt

Sprocket / pulley (corona/pignone)
90T / 20T
Final drive ratio
90T/20T
Belt part number
— (see dealer parts catalog)
Transmission
Clutchless Direct Drive

Range (Zero figures)

City
275 km
Highway
187 km
These are Zero's own figures at their own test speeds. What you get depends on how fast you ride, what you carry, the weather and the hills. Work it out for this bike.

Chassis & suspension

Model generation
FST · Cypher III (Gen 3)
Zero's platform generation for the machine itself, a different axis from the log-format generation our parser reports. The two do not always match: a bike's diagnostic files can decode as a different generation than its platform number.
Front fork
Showa 43 mm big-piston separate-function forks (SFF-BP), adjustable preload/compression/rebound, 120 mm travel
Rear shock (mono)
Showa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression, and rebound damping
Rake / trail
24.5 ° / 94 mm
Wheelbase
1450 mm

Brakes

Front
Bosch Advanced MSC, Dual J-Juan radial-mounted 4-piston calipers, 320 x 5 mm disc
Rear
Bosch Advanced MSC, J-Juan single piston floating caliper, 240 x 4.5 mm disc
ABS
Bosch Advanced MSC (with ABS)

Wheels & tyres

Original tyres, from Zero’s owner manual

Lighting

Headlight
LED (sealed, non-serviceable unit)
Tail light
LED (integrated brake/tail light)
Turn signals
RY10W (10 watt) amber incandescent bulb
Running light (DRL)
LED (front running light, sealed)

Dimensions & weight

Seat height
787 mm
Curb weight
235 kg

Battery packs

The Z-Force packs offered on this bike across 2020–present. Capacity, construction and weight are on each pack's page.

ZF14.414.4 kWh

Monolith pack · 2018-2021

ZF15.615.6 kWh

Monolith pack · 2022-2025

ZF17.317.3 kWh

Monolith pack · 2022-2026

Fitted to the 2025 SR/S

Power Tank ZF3.63.6 kWh

Power Tank · Add-on · 2018-2025

Real-world data

Real-world figures for the Zero SR/S, aggregated and anonymized from actual riding data rather than brochure numbers.

Components, MY2025

What Zero’s own manual specifies for this exact model year, and how widely each part was shared across the range. Every row names the manual behind it.

PartAs the manual describes itOn this modelShared with
MotorZ-Force 75-102020–20253 model lines
Front forkShowa 43 mm big-piston separate-function2020–20254 model lines
Rear shockShowa 40 mm piston piggy-back reservoirread from the manual text (p.155) after our spec extraction missed the row2020–20259 model lines
Front brakeJ-Juan 4-piston radial-mounted (twin caliper) 320 x 5 mm disc2020–20257 model lines
Rear brakeJ-Juan 1-piston 240 x 4.5 mm discread from the manual text (p.155) after our spec extraction missed the row2020–20259 model lines
ABS / stability controlBosch Advanced MSCread from the manual text (p.171) after our spec extraction missed the row2021–20253 model lines
Final drive beltGates Poly Chain HTD Carbonread from the manual text (p.152) after our spec extraction missed the row2020–20259 model lines
Front tyrePirelli Diablo Rosso III 120/70-172020–20254 model lines
Rear tyrePirelli Diablo Rosso III 180/55-172020–20254 model lines

No catalogue row names the Zero SR/S for MY2025 directly. Parts fitted to it may still be listed under a platform token, which this page will not expand for you, so browse the part index instead.

How this compares across the rangePart numbersExploded diagrams for this year

Maintenance & parts

From the official Zero owner & service manuals.

Consumables & wear parts

Final drive
(90T / 20T)
Brake fluid
DOT 4
Front tyre
Pirelli Diablo Rosso III 120/70-17
Rear tyre
Pirelli Diablo Rosso III 180/55-17
Headlight
LED (sealed, non-serviceable unit)
Tail light
LED (integrated brake/tail light)
Turn signals
RY10W (10 watt) amber incandescent bulb

Final drive service

Tension target
62–82 Hz
Inspect / adjust
Every 8,000 mi (13,000 km)
Replace
Every 24,000 mi (37,000 km)
First / break-in service
Initial 100 mi (160 km)

Key torque specs

Rear axle nut
75 lb·ft (102 Nm)
Belt tension adjustment bolts
4 lb-ft (5 Nm)
Power pack-to-frame bolts (left & right)
26 lb-ft (35 Nm)
Power pack ground strap bolt
5 lb-ft (7 Nm)
Brake banjo bolt
20 lb-ft (27 Nm)

Service schedule

  1. Initial 100 mi (160 km)
    belt tension, front brake lever pivot, throttle grip, kickstand pivots/switch, drive motor commissioning
  2. Initial 600 mi (1,000 km)
    wheel bearings, belt tension, steering bearings, front brake lever pivot, kickstand switch, drive motor
  3. Every 8,000 mi (13,000 km) or 12 months
    brake fluid replace, wheels/run-out, wheel bearings, belt tension, steering bearings, chassis fasteners
  4. Every 16,000 mi (25,000 km)
    repack steering bearings
  5. Every 24,000 mi (37,000 km)
    replace drive belt, swingarm pivot bearings

Service timeline

Every occurrence of every interval, from Zero's SRS_Service_Manual_8811934-AI.pdf, page 13.

Break-in

Own scale: these all happen in the first 1k km
160 km
belt tension, front brake lever pivot, throttle grip, kickstand pivots/switch, drive motor commissioning
1k km
wheel bearings, belt tension, steering bearings, front brake lever pivot, kickstand switch, drive motor

Recurring

Every mark is one occurrence, to 40k km
Every 13k kmor 12 months, whichever first

brake fluid replace, wheels/run-out, wheel bearings, belt tension, steering bearings, chassis fasteners

Every 25k km

repack steering bearings

Every 37k km

replace drive belt, swingarm pivot bearings

08k16k24k32k40k
Every model's schedule What that noise means Drive belt tension & alignment Every torque by model year

Model year evolution

Pick a year to put it head to head with another bike on charging, range and what a replacement battery costs.

YearCVNmkm/hkWhkgkg/CVBelt
202511119020017.32352.1290T / 20T
202411319020017.32352.0890T / 20T
202311019020017.32352.1490T / 20T
202211019020014.42352.1490T / 20T
202111019020014.42292.0890T / 20T
202011019020014.4220290T / 20T
Compare the 2025 SR/S with another bike Table of every model Back to catalog

Specifications extracted from the official Zero Motorcycles owner & service manuals (EU / metric figures). Values are for guidance. Always confirm against your bike's manual.