AJS Tempest Roadster 125 - 2026 Specifications and Reviews

The AJS Tempest Roadster 125 is an accessible all-rounder designed for novice and commuter riders seeking a lightweight, nimble motorcycle. Powered by a dependable 124cc single-cylinder four-stroke engine producing 9.5 horsepower, it delivers smooth everyday performance and reliable fuel injection. Its balanced handling and modest top speed make it ideal for urban riding and learner progression.

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General information

Color OptionsMetallic Blue, Metallic Dark Red, Jet Black
CategoryAllround
 
 

Engine and Transmission Specifications

StartingElectric & kick
Emission DetailsEuro 5
Emission42.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel Consumption1.84 litres/100 km (54.3 km/l or 127.84 mpg)
ClutchWet, multiplate
Final DriveChain (final drive)
Gearbox5-speed
Cooling SystemAir
Fuel ControlOverhead Cams (OHC)
InductionInjection
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Max Torque9.5 Nm (1.0 kgf-m or 7.0 ft.lbs) @ 6500 RPM
Capacity:124.0 ccm (7.57 cubic inches)
 
 

Physical measures and capacities

Fuel Capacity16.00 litres (4.23 US gallons)
Wheelbase1330 mm (52.4 inches)
Overall Width800 mm (31.5 inches)
Overall Length2040 mm (80.3 inches)
Overall Height1110 mm (43.7 inches)
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
Power/Weight Ratio0.0756 HP/kg
Dry Weight126.0 kg (277.8 pounds)

AJS Tempest Roadster 125 dimensions and frame

WheelsSpoked wheels with alloy rims
Rear BrakesSingle disc
Brake Disc Diameter210 mm (8.3 inches)
Front BrakesSingle disc. Combined braking system
Rear Tyre130/70-17
Front Tyre110/70-17
Rear SuspensionDual shocks
Front SuspensionTelescopic fork
FrameSteel

Speed and acceleration

Top Speed96.6 km/h (60.0 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Update specsReport missing specs or required updates.
CommentsSold in the UK. 17 year old learner legal.
Exhaust systemStainless steel
Power9.5 HP (6.9 kW)) @ 8500 RPM
Engine typeSingle cylinder, four-stroke
Year2025
Motorcycle nameAJS Tempest Roadster 125

Performance Profile & Rider Fit

9.5 hp
Peak Power
60 mph
Top Speed

Best For

Track5%
City85%
Cornering40%
Daily Riding70%
Touring20%
Passenger25%

Rider Profile

Best ForThis bike is ideal for brand-new riders, learners, and anyone riding on a 125cc license or restricted permit.
PurposeIt's built for easy commuting, urban errands, and learning the ropes rather than performance riding.
Rider FitIts low seat height and lightweight chassis make it very approachable for shorter or less physically strong riders.
CharacterA classic-styled, friendly roadster that prioritizes simplicity, low running costs, and confidence-inspiring manners over outright speed.
Not Ideal ForThis is not the right bike for experienced riders seeking motorway speed, long-distance touring comfort, or off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2026 AJS Tempest Roadster 125 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 780mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2026 AJS Tempest Roadster 125, with a moderate knee angle of around 115 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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