It appears you're interested in specifications for the Xingyue XYST400. This ATV model is powered by a Single cylinder, four-stroke engine with 400.00 ccm (24.41 cubic inches) of actual displacement before 10.3:1 compression. Fueling is metered via allowing this machine to produce its 18.77 HP (13.7 kW) horsepower and 21.00 Nm (2.1 kgf-m or 15.5 ft.lbs) torque. According to our records engine heat of the Xingyue XYST400 is moderated by Liquid. You'll need to get familiar with the Automatic transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 25/8-12 and the rear is 25/8-12 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc front brakes and Expanding brake (drum brake) rear brakes. The Xingyue XYST400 was launched in 2012, and we're happy to know (or assume) you've got one in your garage. To help you keep your ride in tip-top shape, consider purchasing an owner or service manual.