It appears you're interested in specifications for the Yamaha V Star 950. This Custom / cruiser model is powered by a 60° V twin. Forged aluminum pistons. V2, four-stroke engine with 942.31 ccm (57.50 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via Injection allowing this machine to produce its horsepower and torque. According to our records engine heat of the Yamaha V Star 950 is moderated by Air. 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 130/70-18 and the rear is 170/70-16 . The entire package is supported by the frame, Steel double-cradle. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Single disc. Hydraulic front brakes and Single disc. Hydraulic rear brakes. The Yamaha V Star 950 was launched in 2012, 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.