It appears you're interested in specifications for the GAS GAS SM 450 Supermotard. This Super motard model is powered by a Single cylinder, four-stroke engine with 449.00 ccm (27.40 cubic inches) of actual displacement before compression. Fueling is metered via Injection allowing this machine to produce its horsepower and torque. According to our records engine heat of the GAS GAS SM 450 Supermotard is moderated by Liquid. You'll need to get familiar with the 6-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/60-17 and the rear is 150/60-17 . The entire package is supported by the frame, Type Deltabox* made of ´D´ profile CrMo. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. 2-piston caliper, Nissin front brakes and Single disc rear brakes. The GAS GAS SM 450 Supermotard was launched in 2009, 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.