It appears you're interested in specifications for the Kawasaki Vulcan 900 Custom. This Custom / cruiser model is powered by a V2, four-stroke engine with 903.00 ccm (55.10 cubic inches) of actual displacement before 9.5:1 compression. Fueling is metered via Injection allowing this machine to produce its horsepower and 78.91 Nm (8.0 kgf-m or 58.2 ft.lbs) torque. According to our records engine heat of the Kawasaki Vulcan 900 Custom is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is 80/90-21 and the rear is 180/70-15 . The entire package is supported by the 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 front brakes and Single disc rear brakes. The Kawasaki Vulcan 900 Custom 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.