It appears you're interested in specifications for the GAS GAS TXT 280 Pro. This Trial model is powered by a Single cylinder, two-stroke engine with 272.20 ccm (16.61 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor allowing this machine to produce its horsepower and torque. According to our records engine heat of the GAS GAS TXT 280 Pro is moderated by Liquid. You'll need to get familiar with the 6-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 2.75-21 and the rear is 4.00-18 . The entire package is supported by the frame, Tubular CR-Mo. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. 4-piston caliper front brakes and Single disc. 2-piston caliper rear brakes. The GAS GAS TXT 280 Pro was launched in 2009, 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.