It appears you're interested in specifications for the Sherco 450 SEF-R. This Enduro / offroad model is powered by a Single cylinder, four-stroke engine with 449.50 ccm (27.43 cubic inches) of actual displacement before compression. Fueling is metered via Injection. Synerject digital electronic fuel injection allowing this machine to produce its horsepower and torque. According to our records engine heat of the Sherco 450 SEF-R 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 1.60-21 and the rear is 2.15-18 . The entire package is supported by the frame, Double cradle Chrome-Molybdenum design. 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 Single disc rear brakes. The Sherco 450 SEF-R was launched in 2014, 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.