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MotoLibrary Score
36/100Commuter
Power/Weight
0.23 hp/kg
Top Speed
45 km/h
Engine
55 ccm
Technical Overview
2023 Factory Bike M55 Technical Analysis & Specification Breakdown
Engineered by Factory Bike for the minibike, cross motorcycle segment, the 2023 Factory Bike M55 relies on a 55 cc (3.4 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 9 HP (6.6 kW), transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 163.6 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the M55 measures 40 kg (88 lbs) dry, translating to a power-to-weight ratio of 0.23 HP/kg (4.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 575 mm (22.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 915 mm (36 in) wheelbase engineered for quick, flickable steering geometry. The 1.5-liter (0.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 45 km/h (28 mph).
Specific Output
163.6 HP/L
Power-to-Weight
0.23 HP/kg (4.44 kg/HP)
Standover Height
575 mm (22.6 in)
Engine
Displacement55.0 ccm (3.36 cubic inches)
Engine TypeSingle cylinder, two-stroke
Power9.0 HP (6.6 kW))
Fuel SystemCarburettor
LubricationOil mix 1:20
CoolingAir
Transmission
GearboxAutomatic
Final DriveChain (final drive)
ClutchMultidisc in oil cath
Performance
Top Speed45.0 km/h (28.0 mph)
Chassis
Front SuspensionInverted fork
Rear SuspensionMonoshock
Wheelbase915 mm (36.0 inches)
Wheels & Brakes
Front Tyre2.50-10
Rear Tyre2.50-10
Front BrakesSingle disc
Front Brake Ø150 mm (5.9 inches)
Rear BrakesSingle disc
Rear Brake Ø150 mm (5.9 inches)
WheelsWire spoked
Dimensions & Weight
Dry Weight40.0 kg (88.2 pounds)
Power/Weight0.2250 HP/kg
Seat Height575 mm (22.6 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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
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.
