It appears you're interested in specifications for the MBK Booster 12inch. This Scooter model is powered by a Single cylinder, two-stroke engine with 49.00 ccm (2.99 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor. GURTNER PY-12 allowing this machine to produce its 3.21 HP (2.3 kW) horsepower and 3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) torque. According to our records engine heat of the MBK Booster 12inch is moderated by Air. You'll need to get familiar with the Automatic transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is 120/70-12 and the rear is 130/70-12 . The entire package is supported by the frame, . We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. Disc, Ø 180 front brakes and Expanding brake (drum brake). Drum, Ø 110 rear brakes. The MBK Booster 12inch 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.