It appears you're interested in specifications for the Yamaha Aerox 155VVA. This Scooter model is powered by a Single cylinder, four-stroke engine with 155.00 ccm (9.46 cubic inches) of actual displacement before 10.5:1 compression. Fueling is metered via Injection allowing this machine to produce its 14.75 HP (10.8 kW) horsepower and 18.71 Nm (1.9 kgf-m or 13.8 ft.lbs) torque. According to our records engine heat of the Yamaha Aerox 155VVA is moderated by Liquid. You'll need to get familiar with the Automatic transmission and pay attention to final drive Belt maintainence. Our best information shows that the front tire size is 110/80-R14 and the rear is 140/70-R14 . The entire package is supported by the frame, Underbone, steel. 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 Aerox 155VVA was launched in 2019, 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.