It appears you're interested in specifications for the Hyosung Rapier 450 Quad. This ATV model is powered by a Single cylinder, four-stroke engine with 448.80 ccm (27.39 cubic inches) of actual displacement before 12.0:1 compression. Fueling is metered via Carburettor allowing this machine to produce its 50.00 HP (36.5 kW) horsepower and 47.64 Nm (4.9 kgf-m or 35.1 ft.lbs) torque. According to our records engine heat of the Hyosung Rapier 450 Quad is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 175/75-10 and the rear is 255/55-9 . 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 Double disc front brakes and Single disc rear brakes. The Hyosung Rapier 450 Quad was launched in 2011, 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.