Positioned in Qjmotor's classic motorcycle lineup, the 2021 Qjmotor QJ500-8A pairs a 500 cc (30.5 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 25.5 HP (18.6 kW) at 5,500 rpm while maximum torque reaches 40 Nm (29.5 lb-ft) at 4,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 51 HP per liter and a 1,500 rpm working window between peak torque (4,000 rpm) and peak power (5,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the QJ500-8A measures 205 kg (452 lbs) wet (curb), translating to a power-to-weight ratio of 0.12 HP/kg (8.04 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,440 mm (56.7 in) wheelbase engineered for balanced agility and highway composure. The 15.5-liter (4.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
51 HP/L
Power-to-Weight
0.12 HP/kg (8.04 kg/HP)
Power Band Window
4,000–5,500 rpm
Standover Height
800 mm (31.5 in)
Engine
Displacement500.0 ccm (30.51 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power25.5 HP (18.6 kW)) @ 5500 RPM
Torque40.0 Nm (4.1 kgf-m or 29.5 ft.lbs) @ 4000 RPM
Compression8.5:1
Bore x Stroke86.0 x 90.0 mm (3.4 x 3.5 inches)
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionTCI
LubricationForced and Splash
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchManual, Multiplate Wet
Chassis
Frame TypeCradle, steel
Front SuspensionTelescopic
Front Travel120 mm (4.7 inches)
Rear SuspensionUnit Swing
Rear Travel60 mm (2.4 inches)
Wheelbase1440 mm (56.7 inches)
Ground Clearance120 mm (4.7 inches)
Wheels & Brakes
Front Tyre100/90-19
Rear Tyre130/80-18
Front BrakesSingle disc. Hydraulic.
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Hydraulic.
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.205.0 kg (451.9 pounds)
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Overall Height1120 mm (44.1 inches)
Overall Length2170 mm (85.4 inches)
Overall Width820 mm (32.3 inches)
Fuel Capacity15.50 litres (4.10 US gallons)
Other
StarterElectric
Color OptionsBlack, red, green, yellow
Notes
The Chinese firm QJMotor is owned by Qianjiang that has bought Benelli, Keeway and KSR.
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.
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.
