BMW R 90 898 (1973 - 1976) Description & History: Being produced between 1973 and 1976, the R 90 built by BMW was equipped with a four-stroke, 2-cylinder, horizontally-opposed "Boxer" engine, as well as with two Dell'Orto PHM with accelerator pumps carburetors.
BMW R 90 898 1973 - 1976 Full Specifications:Brand: BMW, Model: R, Type: R 90 1973, Name Year: R 90 898 1973 - 1976, Engine Type: Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled, Displacement: 898 cm3, Bore Xstroke: 3.54x2.77 in OR 89.9x70.4 mm, Compression: 9.5:1, Horsepower: 49(67)/7000 KW(hp)/RPM, Torque: 53/5500 lb-ft/RPM OR 72/5500 Nm/RPM, Fuel System: Carburetors, Gearbox: 5-speed, Clutch: Dry single plate, with diaphragm spring, Primary Drive: -, Final Drive: -, Frame: Double-loop tubular frame with bolt-on rear section, Front Suspension: Telescopic fork with hydraulic shock absorber, Rear Suspension: Long swinging arm with adjustable strut, Front Brake: Dual hydraulic disc 1.35x10.24 in, Rear Brake: Drum, 7.87x1.18 in, Length: 85.8 in OR 2179 mm, Width: 29.1 in OR 739 mm, Seat Height: 31.9 in OR 810 mm, Wellbase: 57.6 in OR 1463 mm, Ground Clearance: 6.4 in OR 163 mm, Weight: 474 lbs OR 215 kg, Fuel Capacity: 6.3 gallons OR 6.3 L, Tyres Front: 3.25x19, Tyres Rear: 4.00x18.