It appears you're interested in specifications for the Yamaha TTR250. This Enduro / offroad model is powered by a Single cylinder, four-stroke engine with 249.00 ccm (15.19 cubic inches) of actual displacement before 10.2:1 compression. Fueling is metered via allowing this machine to produce its horsepower and torque. According to our records engine heat of the Yamaha TTR250 is moderated by . You'll need to get familiar with the 6-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 3.00-21 and the rear is 4.6-18 . The entire package is supported by the frame, Semi double cradle. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. Hydraulic front brakes and Single disc. Hydraulic rear brakes. The Yamaha TTR250 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.