BMW R90S

BMW R90S
Gold BMW R90S motorcycle in gleaming showroom condition
ManufacturerBMW Motorrad
Production1973–1976
Classsport motorcycle
Engine898 cc Four-stroke, two-cylinder, horizontally opposed "Boxer", air-cooled[1]
Bore / stroke90 mm × 70.6 mm (3.54 in × 2.78 in)
Top speed124 mph (200 km/h)
Power67 hp (50 kW)
Torque76 N⋅m (56 lbf⋅ft)
Transmission5-speed, shaft drive
BrakesFront: dual 260 mm discs
Rear: 200 mm drum
TiresFront: 19 in (480 mm) Rear: 18 in (460 mm)[2]
Wheelbase1,465 mm (57.7 in)
DimensionsL: 2,180 mm (86 in)
W: 740 mm (29 in)
H: 1,210 mm (48 in)
Seat height820 mm (32 in)
Weight215 kg (474 lb) (wet)
Fuel capacity24 L (5.3 imp gal; 6.3 US gal)
RelatedR90/6

The BMW R90S is a 900cc sport motorcycle produced by BMW from 1973 to 1976. BMW commissioned designer Hans Muth to oversee the R90S, which became the flagship of the boxer engined "/6" range. Sporting distinctive two-tone paintwork, a bikini fairing and a new tail, the R90S was intended to shrug off the enduring image of BMW bikes as staid and utilitarian.

The 67 bhp (50 kW) R90S had a top speed of 124 mph (200 km/h),[3] it ran the quarter mile in around 13.5 seconds and it accelerated from 0 to 62 mph (0–100 km/h) in 4.8 seconds.[3] Maximum torque was delivered at 5,500 rpm and the engine redlined at 7,200 rpm.

  1. ^ "BMW R90S Specifications". BMbikes. Retrieved 12 August 2009.
  2. ^ Front:19 in (480 mm)
  3. ^ a b "R90S Specifications". bmbikes. Archived from the original on 13 December 2010. Retrieved 21 November 2010.