It appears you're interested in specifications for the Paton S1-R Lightweight Race Edition. This Sport model is powered by a Twin, four-stroke engine with 649.0 ccm (39.60 cubic inches) of actual displacement before 10.8:1 compression. Fueling is metered via Injection. Keihin, 38mmx2 allowing this machine to produce its horsepower and torque. According to our records engine heat of the Paton S1-R Lightweight Race Edition is moderated by Liquid. You'll need to get familiar with the transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-17 and the rear is 180/55-17 . 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 Double disc front brakes and Single disc rear brakes. The Paton S1-R Lightweight Race Edition 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.