It appears you're interested in specifications for the UM DSR EX. This Enduro / offroad model is powered by a Single cylinder, four-stroke engine with 124.20 ccm (7.58 cubic inches) of actual displacement before 12.8:1 compression. Fueling is metered via Injection. Marelli allowing this machine to produce its horsepower and 10.90 Nm (1.1 kgf-m or 8.0 ft.lbs) torque. According to our records engine heat of the UM DSR EX is moderated by Liquid. You'll need to get familiar with the 6-speed transmission and pay attention to final drive Chain maintainence. Our best information shows that the front tire size is 90/90-21 and the rear is 120/80-18 . 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. Wave disc. Hydraulic. front brakes and Single disc. Wave disc. Hydraulic. rear brakes. The UM DSR EX was launched in 2018, 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.