It appears you're interested in specifications for the Polini 910 Carena S H2O. This Minibike, sport model is powered by a Single cylinder, two-stroke engine with 39.69 ccm (2.42 cubic inches) of actual displacement before 16.2:1 compression. Fueling is metered via Carburettor. SHA 14-14 allowing this machine to produce its 6.20 HP (4.5 kW) horsepower and torque. According to our records engine heat of the Polini 910 Carena S H2O is moderated by Liquid. 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 90/65-R6.5 and the rear is 110/50-R6.5 . The entire package is supported by the frame, Reinforced die cast light alloy. 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. 122 rear brakes. The Polini 910 Carena S H2O was launched in 2007, 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.