It appears you're interested in specifications for the Yamaha YBR 125. This Naked bike model is powered by a Single cylinder, four-stroke engine with 124.00 ccm (7.57 cubic inches) of actual displacement before 10.0:1 compression. Fueling is metered via Injection allowing this machine to produce its 10.06 HP (7.3 kW) horsepower and 9.60 Nm (1.0 kgf-m or 7.1 ft.lbs) torque. According to our records engine heat of the Yamaha YBR 125 is moderated by Air. 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 -0.42 and the rear is 90/90-M18 . The entire package is supported by the frame, Diamond shaped. 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 Expanding brake (drum brake) rear brakes. The Yamaha YBR 125 was launched in 2010, 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.