Built around Xingyue's atv motorcycle platform, the 2012 Xingyue XYST400 features a 400 cc (24.4 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 18.8 HP (13.7 kW) at 7,500 rpm while maximum torque reaches 21 Nm (15.5 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 47 HP per liter and a 1,500 rpm working window between peak torque (6,000 rpm) and peak power (7,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the XYST400 measures 275 kg (606 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (14.63 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,250 mm (49.2 in) wheelbase engineered for quick, flickable steering geometry. The 16.2-liter (4.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 90 km/h (56 mph).
Within MotoLibrary's Xingyue archive, this model family spans 2 indexed model years from 2011 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
47 HP/L
Power-to-Weight
0.07 HP/kg (14.63 kg/HP)
Power Band Window
6,000–7,500 rpm
Engine
Displacement400.0 ccm (24.41 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power18.8 HP (13.7 kW)) @ 7500 RPM
Torque21.0 Nm (2.1 kgf-m or 15.5 ft.lbs) @ 6000 RPM
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.
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.
