2025 Zero XB Technical Analysis & Specification Breakdown
Positioned in Zero's trial motorcycle lineup, the 2025 Zero XB features a purpose-built air-cooled electric configuration. In factory specification, peak output is rated at 10 HP (7.3 kW) while maximum torque reaches 42 Nm (31 lb-ft), transferring power to the rear wheel through a automatic gearbox and belt final drive.
On the scales, the XB measures 63 kg (139 lbs) wet (curb), translating to a power-to-weight ratio of 0.16 HP/kg (6.3 kg per horsepower). Rider ergonomics and chassis geometry center around a 832 mm (32.8 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams.
Within MotoLibrary's Zero archive, this model family spans 2 indexed model years from 2025 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
0.16 HP/kg (6.3 kg/HP)
Standover Height
832 mm (32.8 in)
Engine
Engine TypeElectric
Engine DetailsPermanent magnet synchronous motor
Power10.0 HP (7.3 kW))
Torque42.0 Nm (4.3 kgf-m or 31.0 ft.lbs)
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchClutchless direct drive
Driveline90T / 18T, Poly Chain® HTD® Carbon™ belt
Performance
Top Speed75.6 km/h (47.0 mph)
Chassis
Rake25.4°
Trail104 mm (4.1 inches)
Front SuspensionTelescopic fork, adjustable
Front Travel195 mm (7.7 inches)
Rear SuspensionMonoshock, adjustable
Rear Travel176 mm (6.9 inches)
Wheels & Brakes
Front Tyre90/90-19
Rear Tyre120/80-19
Front BrakesSingle disc. 2-piston calipers
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Ø203 mm (8.0 inches)
WheelsKnobby CST tires
Dimensions & Weight
Weight incl.63.0 kg (138.9 pounds)
Seat Height832 mm (32.8 inches) If adjustable, lowest setting.
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.
