Underbones
2021Kenbo KB125
21 fields on record
The 2021 Kenbo KB125 is an underbone for commuters who want frugal, practical step-through transport. Its 120cc air-cooled single makes 7 hp, with a 92 kg wet weight and an 80 km/h top speed.
- Capacity
- 120.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Wet weight
- 92.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 7.0 HP (5.1 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built as an economical commuter cub for short urban trips, errands, and light delivery work rather than performance riding.
- Built for
- A humble, no-frills underbone motorcycle that prioritizes fuel efficiency and practicality over excitement or refinement.
- Not ideal for
- Not suitable for highway travel, long-distance touring, carrying a passenger comfortably, or any rider seeking real performance.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 120.0 ccm
- Power
- 7.0 HP (5.1 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.0761 HP/kg (wet)
- Cooling system
- Air
Performance
- Top speed
- 80.0 km/h (49.7 mph)
Dimensions & weight
Chassis & suspension
- Frame
- Underbone
- Front suspension
- Telescopic fork
- Rear suspension
- Dual shocks
Brakes & wheels
- Front brakes
- Expanding brake (drum brake)
- Rear brakes
- Expanding brake (drum brake)
- Front tyre
- 2.50-17
- Rear tyre
- 2.75-17
Other
- Color options
- Black, red
- Comments
- Chinese cub
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 | 2020 | 2021 | 2022 | 2023 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 120 cc | 120 cc | 120 cc | 120 cc | 120 cc | 120 cc |
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 Kenbo KB125?
The 2021 Kenbo KB125 has a Capacity of 120.0 ccm (7.32 cubic inches).
What engine power does the Kenbo KB125 have?
The 2021 Kenbo KB125 has a Power of 7.0 HP (5.1 kW).
How much does the Kenbo KB125 weigh?
The 2021 Kenbo KB125 has a Wet weight of 92.0 kg (202.8 pounds).
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