It appears you're interested in specifications for the Yamaha Tmax 500. This Scooter model is powered by a Two cylinder boxer, four-stroke engine with 449.00 ccm (27.40 cubic inches) of actual displacement before 11.0:1 compression. Fueling is metered via Injection allowing this machine to produce its 43.71 HP (31.9 kW) horsepower and 47.60 Nm (4.9 kgf-m or 35.1 ft.lbs) torque. According to our records engine heat of the Yamaha Tmax 500 is moderated by Liquid. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-14 and the rear is 150/70-14 . The entire package is supported by the frame, Front suspension system. 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 Yamaha Tmax 500 was launched in 2004, 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.