It appears you're interested in specifications for the Polini Minicross X5 FR. This Minibike, cross model is powered by a Single cylinder, two-stroke engine with 64.70 ccm (3.95 cubic inches) of actual displacement before 14.2:1 compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the Polini Minicross X5 FR is moderated by Air. You'll need to get familiar with the transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is and the rear is . The entire package is supported by the frame, Steel tube. 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 Single disc rear brakes. The Polini Minicross X5 FR was launched in 2005, 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.