It appears you're interested in specifications for the BMW R 850 RT. This Touring model is powered by a Two cylinder boxer, four-stroke engine with 848.00 ccm (51.74 cubic inches) of actual displacement before compression. Fueling is metered via allowing this machine to produce its 73.00 HP (53.3 kW) horsepower and 80.00 Nm (8.2 kgf-m or 59.0 ft.lbs) torque. According to our records engine heat of the BMW R 850 RT is moderated by . You'll need to get familiar with the transmission and pay attention to final drive Shaft drive (cardan) maintainence. Our best information shows that the front tire size is 120/70-ZR19 and the rear is 160/60-ZR17 . 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 front brakes and rear brakes. The BMW R 850 RT was launched in 2002, 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.