It appears you're interested in specifications for the Yamaha Neos 4. This Scooter model is powered by a Single cylinder, four-stroke engine with 49.0 ccm (2.99 cubic inches) of actual displacement before 12.0:1 compression. Fueling is metered via Injection allowing this machine to produce its 3.1 HP (2.2 kW) @ 7000 RPM horsepower and 3.2 Nm (0.3 kgf-m or 2.3 ft.lbs) @ 7000 RPM torque. According to our records engine heat of the Yamaha Neos 4 is moderated by Liquid. You'll need to get familiar with the Automatic transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-12 and the rear is 130/70-12 . 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 Expanding brake (drum brake) rear brakes. The Yamaha Neos 4 was launched in 2021, 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.