Sport Tourers
1990BMW K 100 RS
21 fields on record
The 1990 BMW K 100 RS is a sophisticated sport-touring motorcycle ideal for riders seeking comfortable long-distance travel with spirited performance. Its liquid-cooled 987cc inline-four engine delivers smooth 100 horsepower, while the shaft drive and five-speed gearbox provide reliable, low-maintenance cruising. Best known for combining German engineering refinement with practical touring capability, it attracts experienced riders valuing comfort and dependability over raw sportiness.
- Capacity
- 987.0 ccm
- Engine
- In-line four, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 277.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 100.0 HP (73.5 kW) @ 8000 RPM
What’s new for the 1990 BMW K 100 RS
vs the 1989| Spec | 1989 | 1990 |
|---|---|---|
| Power | 90.0 HP (66.2 kW) @ 8000 RPM | 100.0 HP (73.5 kW) @ 8000 RPM |
| Top speed | 222.0 km/h (137.9 mph) | 225.0 km/h (139.8 mph) |
| Wet weight | 260.0 kg (573.2 pounds) | 277.0 kg (610.7 pounds) |
| Compression | 10.2:1 | 11.0:1 |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for confident high-speed touring and long-distance road covering, blending sporty performance with genuine cross-country comfort.
- Built for
- A solid, mechanically distinctive in-line four with shaft drive that delivers smooth, linear power and a reassuring, stable feel at speed.
- Not ideal for
- Not a good fit for new riders, off-road enthusiasts, or anyone wanting a light, flickable machine for tight urban maneuvering.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 987.0 ccm
- Power
- 100.0 HP (73.5 kW) @ 8000 RPM
- Engine type
- In-line four, four-stroke
- Power/weight ratio
- 0.3610 HP/kg (wet)
- Bore x stroke
- 67.0 x 70.0 mm
- Compression
- 11.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Shaft
Performance
- Top speed
- 225.0 km/h (139.8 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Front tyre
- 120/10-17
- Rear tyre
- 160/60-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 1983 | 1985 | 1988 | 1990 | 1992 |
|---|---|---|---|---|---|
| Capacity | 987 cc | 987 cc | 987 cc | 987 cc | 987 cc |
| Fuel capacity | 22 L | 22 L | 22 L | 22 L | 22 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the BMW K 100 RS?
The 1990 BMW K 100 RS has a Capacity of 987.0 ccm (60.23 cubic inches).
What engine power does the BMW K 100 RS have?
The 1990 BMW K 100 RS has a Power of 100.0 HP (73.5 kW) @ 8000 RPM.
How many gears does the BMW K 100 RS have?
The 1990 BMW K 100 RS has a Gearbox of 5-speed.
How much does the BMW K 100 RS weigh?
The 1990 BMW K 100 RS has a Wet weight of 277.0 kg (610.7 pounds).
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