BMW R1100RS

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BMW R1100RS
Paralever
BrakesFront: Dual 12 in (300 mm) disc, 4-pot caliper
Rear: Single disc
Optional ABS
TiresFront: 120/70-17
Rear: 160/60-18
Rake, trail65.9°
Wheelbase57.5 in (1,460 mm)
DimensionsL: 85.6 in (2,170 mm)
W: 26.2 in (670 mm)
Seat height31.5 in (800 mm)
Weight527 lb (239 kg) (dry)
564 lb (256 kg)[1] (wet)
Fuel capacity6.1 US gal (23 L)

The BMW R1100RS is a

Oilhead" boxer engine.

Design

The R259 1,085 cc flat-twin engine has a maximum output of 90 horsepower (67 kW).[4] The engine was named "Oilhead" as it had air-cooled cylinders but oil-cooled heads.

The BMW R1100RS used a frameless design, using the engine as a

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.[5][6] Both fully-faired and half-faired variants were available.[5]

In 1993 the engine was adopted for the R1100GS.[3][7] 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,[8] but the company still fit oilhead boxer engines to roadsters such as the R nineT and the R1100R.

Awards

The R1100RS was marketed in the United States from 1994, when it was chosen as

standard motorcycle of 1994.[2]

References

  1. ^ a b Cook, Marc (December 2000), "Return of the original oil head", Motorcyclist
  2. ^ a b Edwards, David (October 1994), "Best standard bike: BMW R1100GS", Cycle World, 33 (10): 45
  3. ^ a b "BMW history: BMW celebrates its anniversary / the new boxer". BMW Motorrad. Retrieved 2013-05-19. 70 years after the R 32 of 1923, BMW presents the BMW R 1100 RS sports tourer at the beginning of the 1993 season, the first model of the new boxer generation, followed one year later by the Enduro model BMW R 1100 GS.
  4. ^ Salvadori, Clement (March 3, 1994), "Updated boxer engine packs plenty of punch on the road", Orlando Sentinel, archived from the original on June 16, 2013, retrieved 2013-05-19
  5. ^
    ISSN 0011-4286
  6. ^ Bill Stermer (July 2005), "2005 BMW R1200ST", Rider: 42, As with all oilhead BMWs ... the engine functions as a stressed member; various subframes solidly mount to it to support the fork, seat and related components.
  7. ISBN 0-7603-1164-1
    , The R1100RS was the first of the oilheads released.
  8. ^ Cameron, Kevin (December 21, 2012), "BMW's all-new water-cooled boxer — tech preview: It only took 90 years...", Cycle World
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