It appears you're interested in specifications for the VOR MX 450 Motocross. This Cross / motocross model is powered by a Single cylinder, four-stroke engine with 444.00 ccm (27.09 cubic inches) of actual displacement before 12.1:1 compression. Fueling is metered via Carburettor. Keihin FCR 39 allowing this machine to produce its horsepower and torque. According to our records engine heat of the VOR MX 450 Motocross is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 90/90-21 and the rear is 130/90-19 . The entire package is supported by the frame, Perimetral frame, CrMo, Oval cross-section spars, aluminium rear 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. Bremo front brakes and Single disc. Bremo rear brakes. The VOR MX 450 Motocross 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.