It appears you're interested in specifications for the Skyteam ST50. This Minibike, cross model is powered by a Single cylinder, four-stroke engine with 49.00 ccm (2.99 cubic inches) of actual displacement before 8.8:1 compression. Fueling is metered via allowing this machine to produce its horsepower and torque. According to our records engine heat of the Skyteam ST50 is moderated by Air. 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 100/90-10 and the rear is 120/90-10 . 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 front brakes and Expanding brake (drum brake) rear brakes. The Skyteam ST50 was launched in 2008, 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.