It appears you're interested in specifications for the Polini XP 4T Minimotard. This Minibike, sport model is powered by a Single cylinder, four-stroke engine with 107.00 ccm (6.53 cubic inches) of actual displacement before 9.6:1 compression. Fueling is metered via Carburettor. Mikini 22 allowing this machine to produce its horsepower and torque. According to our records engine heat of the Polini XP 4T Minimotard is moderated by Liquid. You'll need to get familiar with the 4-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 90/90-10 and the rear is 90/90-10 . The entire package is supported by the frame, Steel. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Expanding brake (drum brake). Hydraulic front brakes and Expanding brake (drum brake). Hydraulic rear brakes. The Polini XP 4T Minimotard was launched in 2010, 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.