It appears you're interested in specifications for the Piaggio X9 Evolution 250. This Scooter model is powered by a Single cylinder, four-stroke engine with 244.30 ccm (14.91 cubic inches) of actual displacement before 10.3:1 compression. Fueling is metered via allowing this machine to produce its horsepower and torque. According to our records engine heat of the Piaggio X9 Evolution 250 is moderated by Liquid. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-14 and the rear is 140/60-14 . The entire package is supported by the frame, Double cradle, high resistance steel pipe structure. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc front brakes and Single disc rear brakes. The Piaggio X9 Evolution 250 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.