Motocross Bikes
1981Kawasaki KM 100
18 fields on record
The 1981 Kawasaki KM 100 is a lightweight commuter bike ideally suited for novice riders and daily urban use. Powered by an air-cooled 100cc single-cylinder engine with rotary valve induction, it delivers modest but adequate power for city riding. This practical, economical machine is best known for its reliability and accessibility to entry-level motorcyclists seeking affordable transportation.
- Capacity
- 100.0 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Wet weight
- 89.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 8.8 HP (6.5 kW) @ 6500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's a lightweight commuter-style small-bore bike intended for short trips, learning to ride, and casual local runs rather than performance riding.
- Built for
- The bike has a simple, no-frills mechanical charm typical of early-1980s small two-stroke commuters, with modest performance and rotary-valve induction quirkiness.
- Not ideal for
- It is not suitable for highway travel, long-distance touring, carrying a passenger comfortably, or riders seeking any real performance edge.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 100.0 ccm
- Power
- 8.8 HP (6.5 kW) @ 6500 RPM
- Engine type
- Single
- Power/weight ratio
- 0.0989 HP/kg (wet)
- Bore x stroke
- 49.5 x 51.8 mm
- Compression
- 7.3:1
- Cooling system
- Air
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 86.0 km/h (53.4 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Expanding brake
- Rear brakes
- Expanding brake
- Front tyre
- 2.50-16
- Rear tyre
- 3.00-14
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 | 1980 | 1981 |
|---|---|---|
| Capacity | 100 cc | 100 cc |
| Fuel capacity | 6 L | 6 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 Kawasaki KM 100?
The 1981 Kawasaki KM 100 has a Capacity of 100.0 ccm (6.10 cubic inches).
What engine power does the Kawasaki KM 100 have?
The 1981 Kawasaki KM 100 has a Power of 8.8 HP (6.5 kW) @ 6500 RPM.
How many gears does the Kawasaki KM 100 have?
The 1981 Kawasaki KM 100 has a Gearbox of 5-speed.
How much does the Kawasaki KM 100 weigh?
The 1981 Kawasaki KM 100 has a Wet weight of 89.0 kg (196.2 pounds).
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