It appears you're interested in specifications for the Suzuki JR 50. This Minibike, cross model is powered by a Single cylinder, four-stroke engine with 50.00 ccm (3.05 cubic inches) of actual displacement before 5.6:1 compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the Suzuki JR 50 is moderated by Air. You'll need to get familiar with the Automatic transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 70/90-17 and the rear is 90/90-14 . 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 Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The Suzuki JR 50 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.