Zero FXE — complete owner's guide

The 2025 Zero FXE is a fully street-homologated electric motorcycle powered by a Z-Force 75-5 passively air-cooled, high-efficiency brushless motor with a radial-flux interior permanent-magnet rotor. It produces a peak 34 kW (46 hp) and 106 Nm (78 lb·ft) of torque, drives the rear wheel through a clutchless direct-drive belt, and reaches an estimated top speed of 137 km/h (85 mph), with roughly 121 km/h (75 mph) sustainable indefinitely. There is no gearbox, no clutch and no oil to change in the drivetrain, so twist-and-go riding is immediate and near-silent.

Energy comes from an integrated Z-Force Li-Ion power pack rated at 7.2 kWh maximum (ZF7.2) and 6.3 kWh nominal usable. Unlike some modular FX variants, the FXE's pack is fixed in the frame rather than hot-swappable. Zero estimates the pack retains 80% of its capacity out to about 229,000 km (142,000 mi) of city riding. Standard equipment on the FXE includes an LED headlight, modified street body panels, a 320 mm front brake disc and a reach-adjustable front brake lever.

The FXE rolls on 17-inch cast wheels (3.00 front, 3.50 rear) shod with Pirelli Diablo Rosso II sport tyres, and uses fully adjustable Showa suspension at both ends. It is a genuinely light motorcycle at 140 kg (309 lb) curb weight with a low 836 mm (32.9 in) seat, which makes it approachable for newer riders while still being quick enough to entertain experienced ones.

The FXE uses a three-position key switch on the fork (Steering Lock, OFF, ON). Turning the key to ON powers up the lights and dash and readies the electrical system; the key can be removed in either OFF or the steering-lock position. To lock the steering, turn the bars fully left, push the key down and rotate it counter-clockwise. On the right handlebar are the throttle, front brake lever, the performance Mode button, high/low beam and flash-to-pass, the horn, turn-signal and hazard switches, and the motor stop (run/stop) switch that cuts power to the motor controller. Because an electric bike is silent when live, always set the run/stop switch to OFF and remove the key whenever you are not actively riding.

The digital dash centres on a speedometer that reads in mph or km/h, ringed by an analog speed arc divided into 12 segments (each segment represents 20 km/h / 12.5 mph). Two configurable readouts flank it. Display A cycles through Range (a learned estimate that adapts to your riding), Motor RPM, Trip 1, and any Error code. Display B cycles through Trip 2, Instant, Average and Lifetime energy use (Wh per mile/km), and Motor temperature. The lower dash shows the state-of-charge percentage (or, while plugged in, the estimated time to full), a charge-level bar, output (torque/power) and regen meters, the odometer, a clock and a Bluetooth pairing icon. The SEL and ADJ buttons set the clock, change units and reset trips. Note that Trip 1 and the Average energy figure both reset automatically every time you charge to 100%.

A row of warning tell-tales communicates system status. Learn them before your first ride so nothing on the road catches you off guard.

The FXE has three selectable performance modes, toggled with the Mode button on the right handlebar. ECO softens acceleration and lowers top speed while dialling up regenerative braking — ideal for maximising range and for newer riders. SPORT sharpens acceleration considerably and reduces regen for a more free-rolling feel, and is aimed at experienced riders. CUSTOM is fully configurable through the Zero smartphone app, letting you tailor torque, top speed, regen and more. You can switch modes on the move, but the change only takes effect once you close the throttle.

Throttle operation is intuitive: twist counter-clockwise (toward you) to accelerate; the harder you twist, the more torque. Release the throttle and it snaps closed, cutting drive and engaging regenerative braking, which converts the bike's momentum back into stored energy and produces a gentle deceleration drag. If you want to coast freely without regen, hold the throttle just off the fully-closed position. ECO gives the strongest regen effect, SPORT the least.

Because the powertrain is passively air-cooled, sustained high-power riding (long full-throttle stints, extended high speed, or spinning the wheel on low-traction surfaces) can heat components toward their limits. The bike then applies a thermal-management strategy: the temperature light flashes as a warning, and if you keep pushing it goes solid and power is gradually trimmed to a level the system can sustain. This is normal protective behaviour, not a fault — ease off and the light clears with no harm done. A tip-over sensor also cuts drive if the bike falls; upright it and perform a full key cycle (OFF, wait for the dash to blank, then ON) to reset.

The FXE charges through its 650 W integrated on-board charger using the supplied cord. A full charge from empty to 100% takes about 9.7 hours (roughly 9.2 hours to 95%), and — importantly — the supply voltage does not change that time: a 120 V and a 240 V outlet charge at the same rate. Adding Zero's optional off-board accessory (quick) chargers dramatically speeds things up; up to four can be connected in parallel with the on-board unit, cutting charge time by as much as 75%, with one accessory charger bringing a full charge down to about 4.1 hours. The pack itself needs no break-in period and no user maintenance beyond sensible charging habits.

Charging is temperature-managed for longevity. The pack will not accept a charge below 0°C (32°F) or above 50°C (122°F), and above about 43°C (109°F) the charger deliberately reduces current, lengthening charge time. If the pack has just been ridden hard it may internally exceed 50°C even on a cool day and refuse charge for up to 30 minutes until it cools. The whole pack must stay within -20°C to 60°C (-4°F to 140°F) to operate at all — outside that band the Battery Management System (BMS) shuts the power controller down.

How you charge matters more than most owners realise. Always use the Zero charger and a grounded outlet; if you must use an extension lead, use a grounded 3-wire 12-AWG cord no longer than 7.6 m (25 ft), and avoid sharing a 15/20 A circuit because the charger can draw up to 14 A. For long-term battery health, unplug once charging is complete — the pack then enters a hibernate mode and self-discharges extremely slowly. Never let the bike sit below 30% state of charge, and in hot climates avoid parking it for long at 100%.

There is no engine to run in, but the FXE still rewards a measured start. The lithium power pack requires no special break-in, yet Zero recommends riding conservatively at first so you learn how the bike's range responds to your route, riding style, weather and load. ECO mode is the natural choice for early rides: it softens the throttle, adds regen and extends range while you build familiarity. Remember, too, that the motor-temperature readout on the dash may be inaccurate for the first five miles of any ride while the system calibrates itself.

New brake pads and discs, on the other hand, genuinely need bedding in — the first few applications will feel weak until an even transfer layer of pad material builds on the discs. Do this deliberately and gently at low speed before you rely on the brakes hard. The FXE is a very light motorcycle, so it stops quickly once the brakes are bedded, but its low weight also means emergency-stop technique differs from heavier bikes; practise in a safe area.

The bike's first two scheduled services fall early in its life and are important: an initial check at 160 km (100 mi) and a fuller service at 1,000 km (600 mi). Don't skip these — they catch the fastener settling and belt/adjustment changes that are normal on a new machine.

An electric drivetrain slashes maintenance, but the FXE is still a performance motorcycle that needs periodic attention. Zero recommends a professional service every 12 months regardless of distance, plus the early 160 km (100 mi) and 1,000 km (600 mi) checks. The major recurring interval is every 13,000 km (8,000 mi) or 12 months, whichever comes first. Before every ride you should check brake fluid, brake operation, tyre pressure and tread, drive-belt condition and throttle return. Fluids and consumables are refreshingly few: DOT 4 brake fluid is the only fluid, the drive belt replaces a chain-and-oil setup, and there is no coolant or transmission oil.

The Poly Chain HTD Carbon belt (11 mm pitch, 90T/18T final drive) is low-maintenance but tension-critical. Too little tension causes 'ratcheting' — the belt teeth skipping over the sprocket — which can damage the belt's carbon cords; if that happens, replace the belt before riding again. Too much tension accelerates wear. Correct tension is 25–76.5 kg by tension tester, or a plucked frequency of 42.5–73.6 Hz measured with the Gates Carbon Drive app on the lower belt span. Clean the belt only with mild soap and water. Optional chain-drive versions instead want 32 mm (1.25 in) total free play and lubrication after any wet ride.

When tightening fasteners, use the specified torque values and the noted thread compounds. Key figures are listed below; the FXE's LED headlight means the H3 bulb listed for the FX does not apply, though turn-signal (RY10W 10 W), brake/tail (1157 5 W) bulbs and the fuse ratings are shared across the range.

The FXE runs Pirelli Diablo Rosso II sport tyres — 110/70-R17 front and 140/70-R17 rear — on 3.00 x 17 and 3.50 x 17 wheels. Correct cold pressures are 32 psi (2.21 bar / 221 kPa) front and 34 psi (2.34 bar / 234 kPa) rear; check them before every ride with an accurate gauge on tyres that haven't rolled for at least three hours. Under-inflation is a leading cause of tyre failure, so don't guess. Replace tyres once tread depth reaches 2 mm (0.08 in) or if you see cuts, bulges, exposed cords or uneven wear, and don't apply tyre dressings, which reduce grip.

Braking is handled by a Bosch Gen 9 ABS system with J-Juan calipers: a 320 mm x 5 mm front disc with an asymmetric dual-piston caliper and a 240 mm x 4.5 mm rear disc with a single-piston caliper. Use only fresh DOT 4 fluid from a sealed container, keep it between the MIN and MAX marks, and replace pads once either pad is worn to 1.35 mm (0.05 in) or less — always in pairs. Minimum disc thickness is 3.85 mm (0.15 in). The ABS light is meant to be on at key-ON and to go out once both wheels pass 5 km/h (3 mph); if it stays lit above that speed, ABS is inactive and needs attention. Note that wheelies, burnouts or loose gravel can momentarily trip ABS off — reset it by stopping, cycling the key off for about 5 seconds, and back on.

Both ends use fully adjustable Showa suspension: 41 mm inverted cartridge forks (178 mm travel) and a 40 mm piggyback-reservoir rear shock (227 mm travel), each adjustable for spring preload, compression and rebound. The springs are set from the factory for an 82 kg (180 lb) rider; heavier riders or added cargo need more preload. Sag targets for the FXE are 60 mm (2.36 in) front and 82 mm (3.22 in) rear. The FXE also has a reach-adjustable front brake lever, tuned via the knob on the master cylinder.

For any layup longer than 30 days, the best approach is simply to leave the FXE plugged into its charger. After 30 days without the key being switched on, the BMS enters long-term storage mode: it draws the pack down to about 80%, then lets it drift down roughly 1% per day, and tops it back up to 80% whenever it falls to 30%. This keeps the cells in a healthy window automatically. Even so, check the state of charge every 30 days by briefly switching the key on, reading the SOC, and switching off. The cardinal rule is never to let the pack sit below 30% — doing so can damage it and void the warranty.

Winter storage in an unheated garage is fine provided the temperature never drops below -20°C (-4°F). Ideally store the bike around 60% charge, keep it out of direct sunlight, and aim for a cool spot; the recommended range is 10°C to 35°C (50°F to 95°F). Cold temperatures temporarily cut range — expect up to a 30% reduction at around -1°C (30°F) versus mild conditions — and you shouldn't ride when the pack itself is below -5°C (23°F). The BMS won't discharge the pack below -20°C or charge it below 0°C, so if you ride in the cold, put it on charge somewhere above 0°C soon afterward.

When transporting the FXE, secure it with soft-sleeved ratchet straps at roughly a 45° angle from frame contact points — two straps at the front and two at the rear — and always carry it with both wheels on the trailer or transport device. Zero explicitly advises against towing the motorcycle in any way, as it can damage the powertrain. Clean the bike with mild detergent and a garden hose rather than a pressure washer or steam cleaner, keeping strong water spray away from the dash, quick-charge connector, power pack and controller, and always test the brakes afterward.

The FXE reports faults two ways. The red system-warning indicator communicates by a repeating count of flashes — count the flashes and match them to the fault list. Separately, a two-digit diagnostic code can be read from dash Display A (select ERROR), which pinpoints the specific condition. Many faults are self-clearing rider issues (a run/stop switch left off, a kickstand down, a low pack), while others need a dealer. If the check-engine light is on with a code, the bike has entered permanent torque reduction and should be serviced.

Most drivability problems trace back to the battery. If the FXE won't turn on, confirm the pack is charged, the key is fully engaged and the motor stop switch is ON, then cycle the key. If it won't charge, check the AC outlet and the charge cord. A pack that is empty, too hot or badly out of balance will have the BMS disable the throttle until the condition is resolved — you cannot ride until it clears. To force a self-test and see the current BMS flash pattern, turn the key OFF, wait about 5 seconds, and turn it back ON.

The tables below capture the most useful codes. When in doubt, note the code and the flash count and give them to your dealer — it speeds diagnosis considerably.

The FXE is a high-voltage vehicle, and its orange-sleeved cables and connectors carry potentially lethal voltage. Never probe, cut, modify or attempt to service any orange high-voltage wiring, the power pack or its connectors — there are no user-serviceable parts inside, and components can be hot as well as live during and after riding. If the bike is in an accident, keep clear of the high-voltage system. In the rare event of a battery fire, extinguish visible flame with a Class D (metal/powder-type) extinguisher, then douse with a water-based extinguisher once the flame is out. The power pack must never be opened by anyone other than a trained Zero technician.

Ride within your ability and the law: wear a regionally approved helmet and proper protective gear on every ride, never ride impaired, and remember the bike's near silence — use the horn to alert pedestrians and cancel your turn signals manually. Because the FXE is light and quick, practise smooth, progressive braking and emergency stops; ABS reduces but does not eliminate the risk of a lock-up, especially if it has been disabled or is faulted. The bike is not designed for towing loads, and only Zero-approved parts, accessories and chargers should be fitted.

The 2025 FXE carries a five-year limited warranty from the in-service date (in the EU, provided by Zero Motorcycles B.V.), covering defects in materials and workmanship across the motor, controller, frame, suspension, brakes, wheels, electrical sub-assemblies and the power pack. A pack qualifies for repair or replacement if its capacity drops more than 20% below the published nominal figure. Wear items — tyres, brake pads and discs, the drive belt, fork seals, grips, pegs and the seat — are excluded, as is damage from racing, misuse, unapproved chargers or modifications, or failure to follow the maintenance and charging guidelines (including keeping firmware updated and never storing the pack below 30% for more than 30 days).