It appears you're interested in specifications for the Yamaha SZ-RR Version 2. This Allround model is powered by a Single cylinder, four-stroke engine with 149.0 ccm (9.09 cubic inches) of actual displacement before compression. Fueling is metered via Carburettor allowing this machine to produce its 12.1 HP (8.8 kW) @ 11000 RPM horsepower and 12.8 Nm (1.3 kgf-m or 9.4 ft.lbs) @ 6000 RPM torque. According to our records engine heat of the Yamaha SZ-RR Version 2 is moderated by Liquid. You'll need to get familiar with the 5-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 2.75-17 and the rear is 100/90-17 . The entire package is supported by the frame, Diamond,. 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 SZ-RR Version 2 was launched in 2020, 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.