Naked Motorcycles
2021AJS Tempest Roadster 125
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The 2021 AJS Tempest Roadster 125 is a retro-styled learner bike sold in the UK. Its air-cooled 124cc single makes 9.5 hp and 9.5 Nm through a five-speed gearbox, for a top speed of about 96.6 km/h. A 780 mm seat, 124 kg dry weight and large 16-litre tank make it practical for commuting.
- Capacity
- 124.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 124.0 kg
- Seat height
- 780 mm
- Power
- 9.5 HP (6.9 kW) @ 8500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built for easy commuting, urban errands, and learning the ropes rather than performance riding.
- Built for
- A classic-styled, friendly roadster that prioritizes simplicity, low running costs, and confidence-inspiring manners over outright speed.
- Not ideal for
- This is not the right bike for experienced riders seeking motorway speed, long-distance touring comfort, or off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 124.0 ccm
- Power
- 9.5 HP (6.9 kW) @ 8500 RPM
- CO2 Emissions
- 4 CO2 g/km
- Torque
- 9.5 Nm (1.0 kgf-m) @ 6500 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.0766 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.0 mm
- Cooling system
- Air
- Fuel system
- Injection
- Starting
- Electric & kick
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiplate
Performance
- Top speed
- 96.6 km/h (60.0 mph)
Dimensions & weight
- Wheelbase
- 1330 mm
- Overall length
- 2040 mm
- Overall width
- 800 mm
- Overall height
- 1110 mm
- Seat height
- 780 mm
- Dry weight
- 124.0 kg
- Fuel capacity
- 16.00 litres
Chassis & suspension
- Frame
- Steel
- Front suspension
- Telescopic fork
- Rear suspension
- Dual shocks
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc
- Front tyre
- 110/70-17
- Rear tyre
- 130/70-17
Other
- Color options
- Oasis Blue, Silver Fox, Jet Black
- Comments
- Sold in the UK.
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 | 2018 | 2020 | 2021 | 2022 | 2024 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc |
| Dry weight | 124 kg | 124 kg | 124 kg | 126 kg | 126 kg | 126 kg |
| Seat height | 780 mm | 780 mm | 780 mm | 780 mm | 780 mm | 780 mm |
| Fuel capacity | 16 L | 16 L | 16 L | 16 L | 16 L | 16 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 AJS Tempest Roadster 125?
The 2021 AJS Tempest Roadster 125 has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the AJS Tempest Roadster 125 have?
The 2021 AJS Tempest Roadster 125 has a Power of 9.5 HP (6.9 kW) @ 8500 RPM.
How many gears does the AJS Tempest Roadster 125 have?
The 2021 AJS Tempest Roadster 125 has a Gearbox of 5-speed.
What is the torque of the AJS Tempest Roadster 125?
The 2021 AJS Tempest Roadster 125 has a Torque of 9.5 Nm (1.0 kgf-m or 7.0 ft.lbs) @ 6500 RPM.
How much does the AJS Tempest Roadster 125 weigh?
The 2021 AJS Tempest Roadster 125 has a Dry weight of 124.0 kg (273.4 pounds).
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