It appears you're interested in specifications for the Sym Joymax Z 250. This Scooter model is powered by a Single cylinder, four-stroke engine with 249.4 ccm (15.22 cubic inches) of actual displacement before compression. Fueling is metered via Injection. EFI, optional carburator allowing this machine to produce its 21.2 HP (15.5 kW) @ 7500 RPM horsepower and 23.5 Nm (2.4 kgf-m or 17.3 ft.lbs) @ 5500 RPM torque. According to our records engine heat of the Sym Joymax Z 250 is moderated by Air. 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 120/70-14 and the rear is 140/60-13 . 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. ABS front brakes and Single disc. ABS rear brakes. The Sym Joymax Z 250 was launched in 2020, 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.