Engineered by Chang-Jiang for the classic motorcycle segment, the 2009 Chang-Jiang 750 M15J-4 Seats relies on a 746 cc (45.5 cu in) air-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 32 HP (23.4 kW) at 5,000 rpm, transferring power to the rear wheel through a 4-speed gearbox and shaft drive (cardan) final drive. With a specific output of 42.9 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the 750 M15J-4 Seats measures 350 kg (772 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.94 kg per horsepower). The 24-liter (6.3 US gal) fuel tank paired with a rated consumption of 7 L/100 km provides an estimated theoretical range of roughly 343 km (213 miles) between fill-ups, while factory top speed is listed at 90 km/h (56 mph).
Specific Output
42.9 HP/L
Power-to-Weight
0.09 HP/kg (10.94 kg/HP)
Theoretical Range
~343 km (213 mi)
Engine
Displacement746.0 ccm (45.52 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power32.0 HP (23.4 kW)) @ 5000 RPM
CoolingAir
Transmission
Gearbox4-speed
Final DriveShaft drive (cardan) (final drive)
ClutchDry
Performance
Top Speed90.0 km/h (55.9 mph)
Fuel Consumption7.00 litres/100 km (14.3 km/l or 33.60 mpg)
Greenhouse Gases162.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSteel
Dimensions & Weight
Dry Weight350.0 kg (771.6 pounds)
Power/Weight0.0914 HP/kg
Overall Height1100 mm (43.3 inches)
Overall Length2190 mm (86.2 inches)
Overall Width1710 mm (67.3 inches)
Fuel Capacity24.00 litres (6.34 US gallons)
Other
StarterElectric & kick
Color OptionsRed
Notes
Chinese copy of pre-war BMW. With sidecar for 3 persons and 100 kg of load. M15J-4 has a gearbox with reverse.
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.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
