It appears you're interested in specifications for the Kymco Maxxer 450i. This ATV model is powered by a Single cylinder, four-stroke engine with 443.0 ccm (27.03 cubic inches) of actual displacement before compression. Fueling is metered via Injection. EFI allowing this machine to produce its 31.5 HP (23.0 kW) @ 7500 RPM horsepower and 33.8 Nm (3.4 kgf-m or 24.9 ft.lbs) @ 6500 RPM torque. According to our records engine heat of the Kymco Maxxer 450i 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 23/8-12 and the rear is 23/10-12 . The entire package is supported by the frame, Pipe Under Bone. 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 Kymco Maxxer 450i 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.