It appears you're interested in specifications for the BMW R80. This Allround model is powered by a Two cylinder boxer, four-stroke engine with 797.00 ccm (48.63 cubic inches) of actual displacement before 8.2:1 compression. Fueling is metered via allowing this machine to produce its 50.00 HP (36.5 kW) horsepower and torque. According to our records engine heat of the BMW R80 is moderated by Air. You'll need to get familiar with the 5-speed transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 90/90-18 and the rear is 120/90-18 . 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 front brakes and Expanding brake rear brakes. The BMW R80 was launched in 1985, 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.