It appears you're interested in specifications for the Ducati Monster 821. This Naked bike model is powered by a Testastretta 11° L-Twin V2, four-stroke engine with 821.0 ccm (50.10 cubic inches) of actual displacement before 12.8:1 compression. Fueling is metered via Injection. 53mm throttle bodies with full Ride by Wire allowing this machine to produce its 109.0 HP (79.6 kW) @ 9250 RPM horsepower and 86.0 Nm (8.8 kgf-m or 63.4 ft.lbs) @ 7750 RPM torque. According to our records engine heat of the Ducati Monster 821 is moderated by Air. You'll need to get familiar with the 6-speed transmission and pay attention to final drive maintainence. Our best information shows that the front tire size is 120/70-ZR17 and the rear is 180/55-ZR17 . The entire package is supported by the frame, Tubular steel Trellis frame attached to the cylinders head. We know you like to go fast or cruise all day, but when you need to stop, you'll be dependant on Double disc. Semi-floating discs, radially mounted Monobloc Brembo M4-32 callipers, 4-pistons, axiial pump with ABS as standard front brakes and Single disc. 2-piston floating calliper with ABS as standard equipment rear brakes. The Ducati Monster 821 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.