Positioned in Jianshe's sport motorcycle lineup, the 2008 Jianshe Cub JS125-G features a 123.7 cc (7.6 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 8.7 HP (6.4 kW) while maximum torque reaches 9 Nm (6.6 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 4-speed gearbox. With a specific output of 70.3 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Cub JS125-G measures 99 kg (218 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (11.38 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 1,190 mm (46.9 in) wheelbase engineered for quick, flickable steering geometry. The 4.3-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
70.3 HP/L
Power-to-Weight
0.09 HP/kg (11.38 kg/HP)
Standover Height
770 mm (30.3 in)
Engine
Displacement123.7 ccm (7.55 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power8.7 HP (6.4 kW))
Torque9.0 Nm (0.9 kgf-m or 6.6 ft.lbs) @ 6000 RPM
Compression9.0:1
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
Gearbox4-speed
ClutchWet automatic shoe clutch and wet type,muti plate
Chassis
Wheelbase1190 mm (46.9 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight99.0 kg (218.3 pounds)
Power/Weight0.0880 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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
