Naked Motorcycles
1981Yamaha RS 100
18 fields on record
The 1981 Yamaha RS 100 is an entry-level commuter bike designed for novice riders and daily urban use. Its lightweight 97cc single-cylinder engine delivers reliable, economical performance with minimal maintenance demands. Best known for affordable practicality and user-friendly handling, it remains an ideal stepping stone for riders transitioning from scooters to motorcycles.
- Capacity
- 97.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 5-speed
- Wet weight
- 106.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 10.0 HP (7.4 kW) @ 7800 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It was built as an economical, easy-to-ride commuter and learner bike rather than a performance or adventure machine.
- Built for
- The RS 100 has a nimble, buzzy two-stroke character that rewards revving over relying on outright torque.
- Not ideal for
- It is not suited to riders wanting sustained highway speeds, long-distance touring comfort, or serious off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 97.0 ccm
- Power
- 10.0 HP (7.4 kW) @ 7800 RPM
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.0943 HP/kg (wet)
- Bore x stroke
- 52.0 x 45.6 mm
- Compression
- 7.0:1
- Cooling system
- Air
- Torque
- Not on record - add it
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 105.0 km/h (65.2 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Expanding brake
- Front tyre
- 2.75-18
- Rear tyre
- 3.00-18
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 | 1980 | 1981 |
|---|---|---|
| Capacity | 97 cc | 97 cc |
| Fuel capacity | 9 L | 9 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 Yamaha RS 100?
The 1981 Yamaha RS 100 has a Capacity of 97.0 ccm (5.92 cubic inches).
What engine power does the Yamaha RS 100 have?
The 1981 Yamaha RS 100 has a Power of 10.0 HP (7.4 kW) @ 7800 RPM.
How many gears does the Yamaha RS 100 have?
The 1981 Yamaha RS 100 has a Gearbox of 5-speed.
How much does the Yamaha RS 100 weigh?
The 1981 Yamaha RS 100 has a Wet weight of 106.0 kg (233.7 pounds).
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