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BMW R1100RS

BMW R1100RS
BMW r 1100 rs.jpg
Manufacturer BMW Motorrad
Production 1993–2001
Predecessor R100RS
Successor R1150RS
Class Sport-touring or standard
Engine 1,085 cc, 4-valve air- and oil-cooled flat twin boxer
Power 90 hp (67 kW)
Transmission 5-speed, shaft drive, dry clutch
Suspension Front:Telelever
Rear: Paralever
Brakes Front: Dual 12 in (300 mm) disc, 4-pot caliper
Rear: Single disc
Optional ABS
Tires Front: 120/70-17
Rear: 160/60-18
Rake, trail 65.9°
Wheelbase 57.5 in (1,460 mm)
Dimensions L: 85.6 in (2,170 mm)
W: 26.2 in (670 mm)
Seat height 31.5 in (800 mm)
Weight 527 lb (239 kg) (dry)
564 lb (256 kg) (wet)
Fuel capacity 6.1 US gal (23 l)

The BMW R1100RS was a sports tourer motorcycle manufactured by BMW Motorrad between 1993 and 2001, and was the first BMW motorcycle to use the new R259 "Oilhead" boxer engine.

The R259 1,085 cc flat-twin engine had a maximum output of 90 horsepower (67 kW). The engine was named "Oilhead" as it had air-cooled cylinders but oil-cooled heads.

The BMW R1100RS had a frameless design, using the engine as a stressed member, an approach used by BMW for all subsequent oilheads (except the R1100S). Instead of having conventional telescopic forks, the R1100RS used BMW's own Telelever suspension which bolted directly to the engine. The Telelever design has a superficially similar appearance to telescopic forks, but braking forces are taken back horizontally, minimising "fork dive". A rear subframe supported the rider, passenger and luggage. Both fully faired and half-faired variants were available.

In 1993 the engine was adopted for the R1100GS. In 1999, a more powerful six-speed version of the R259 engine was fitted in the BMW R1100S. In 2013 BMW introduced liquid-cooling for their flat-twin motorcycle engines, but the company still fit oilhead boxer engines to roadsters such as the R nineT and the R1100R.

The R1100RS was marketed in the United States from 1994, when it was chosen as Cycle World's best standard motorcycle of 1994.


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