It appears you're interested in specifications for the UM Max ZR. This Sport model is powered by a Single cylinder, four-stroke engine with 124.0 ccm (7.57 cubic inches) of actual displacement before 9.0:1 compression. Fueling is metered via Carburettor. PZ25 allowing this machine to produce its 10.7 HP (7.8 kW) @ 8500 RPM horsepower and 8.6 Nm (0.9 kgf-m or 6.3 ft.lbs) @ 7000 RPM torque. According to our records engine heat of the UM Max ZR is moderated by Air. 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 2.75-18 and the rear is 44638. 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 Expanding brake (drum brake) front brakes and Expanding brake (drum brake) rear brakes. The UM Max ZR 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.