2025 Zero FX Technical Analysis & Specification Breakdown
Positioned in Zero's super motard motorcycle lineup, the 2025 Zero FX features a purpose-built air-cooled electric configuration. In factory specification, peak output is rated at 45.6 HP (33.3 kW) at 4,300 rpm while maximum torque reaches 106 Nm (78.2 lb-ft), transferring power to the rear wheel through a automatic gearbox and belt final drive.
On the scales, the FX measures 131 kg (289 lbs) wet (curb), translating to a power-to-weight ratio of 0.35 HP/kg (2.87 kg per horsepower). Rider ergonomics and chassis geometry center around a 881 mm (34.7 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,436 mm (56.5 in) wheelbase engineered for balanced agility and highway composure.
Within MotoLibrary's Zero archive, this model family spans 5 indexed model years from 2015 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
0.35 HP/kg (2.87 kg/HP)
Standover Height
881 mm (34.7 in)
Engine
Engine TypeElectric
Engine DetailsRadial flux permanent magnet, brushless motor
Power45.6 HP (33.3 kW)) @ 4300 RPM
Torque106.0 Nm (10.8 kgf-m or 78.2 ft.lbs)
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchClutchless direct drive
Driveline90T / 18T, Poly Chain® HTD® Carbon™ belt
Performance
Top Speed136.8 km/h (85.0 mph)
0-100 km/h4.00 seconds
Chassis
Rake25.4°
Trail104 mm (4.1 inches)
Front SuspensionShowa 41 mm inverted cartridge forks, with adjustable spring preload, compression and rebound damping
Front Travel218 mm (8.6 inches)
Rear SuspensionShowa 40 mm piston, piggy-back reservoir shock with adjustable spring preload, compression and rebound damping
Rear Travel227 mm (8.9 inches)
Wheelbase1436 mm (56.5 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre120/80-18
Front BrakesSingle disc. ABS. Floating discs. Two-piston calipers.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
