Engineered by Lifan for the scooter motorcycle segment, the 2020 Lifan PK125M utilizes a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 8.9 HP (6.5 kW) at 8,000 rpm while maximum torque reaches 8.8 Nm (6.5 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 4-speed gearbox. With a specific output of 71.2 HP per liter and a 2,000 rpm working window between peak torque (6,000 rpm) and peak power (8,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the PK125M measures 101 kg (223 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (11.35 kg per horsepower). Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,245 mm (49 in) wheelbase engineered for quick, flickable steering geometry. The 3.5-liter (0.9 US gal) fuel tank paired with a rated consumption of 1.5 L/100 km provides an estimated theoretical range of roughly 233 km (145 miles) between fill-ups, while factory top speed is listed at 93 km/h (58 mph).
Specific Output
71.2 HP/L
Power-to-Weight
0.09 HP/kg (11.35 kg/HP)
Power Band Window
6,000–8,000 rpm
Theoretical Range
~233 km (145 mi)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power8.9 HP (6.5 kW)) @ 8000 RPM
Torque8.8 Nm (0.9 kgf-m or 6.5 ft.lbs) @ 6000 RPM
Compression9.2:1
Bore x Stroke53.5 x 55.5 mm (2.1 x 2.2 inches)
CoolingAir
Transmission
Gearbox4-speed
Performance
Top Speed93.0 km/h (57.8 mph)
Fuel Consumption1.50 litres/100 km (66.7 km/l or 156.81 mpg)
Greenhouse Gases34.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Front SuspensionTelescopic hydraulic
Wheelbase1245 mm (49.0 inches)
Wheels & Brakes
Front Tyre2.50-17
Rear Tyre2.75-17
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight101.0 kg (222.7 pounds)
Power/Weight0.0876 HP/kg
Seat Height770 mm (30.3 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.
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.
