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Tempest Roadster best 125 motorcycles

The AJS Tempest Roadster

This classically styled lightweight roadster is perfect for leisure riding, or your daily commute.
Starting is a breeze with its electric start. A neat luggage rack which will readily accept many proprietary boxes is available as a low cost accessory.

Available in three great colour options. Metallic Blue, Metallic Dark Red or Jet Black


SRP £2899.00 inc. VAT*



FREE Nimesa Pro Shock rear suspension upgrade to every new AJS Heritage Range motorcycle purchased.

Tempest 125cc Street Retro Motorcycle

Experience a feeling of security and comfort, the Tempest Roadster is well planted on the road, yet nimble to steer and easy to lift on to its centre stand.


You are sure to want to take the long way home!

The Tempest Roadster punches above its weight with an impressive specification which includes, alloy wheel rims, 37mm diameter front forks, stainless steel exhaust, combined brakes, electronic fuel injection, and a comfortable, plush seat.

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AJS Tempest 125cc Motorcycle custom classic style

Key Features


17 year old learner legal

Ultra smooth Balance Shaft, YBR, 4 stroke engine

Combined braking system

Light and easy to handle

Centre stand and side stand fitted

Excellent fuel economy

Straight-pull, spoked wheels with alloy rims

Large 16L fuel tank

Stainless steel exhaust system
Low fuel level warning light

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Technical Details (Euro 5)

Engine type: YB 4-stroke, OHC, air cooled, single cylinder
Displacement: 124cm³
Bore x Stroke: 54mm x 54mm
Max. power: 7.33Kw @ 9000 rpm
Max torque: 9.5 Nm @ 6,500 rev/min
Fuel system: Electronic Fuel Injection
Fuel tank capacity: 16L

Fuel type: Unleaded or E5 petrol

Transmission: five speed, chain drive
Mass in running order: 126kg

Max laden mass: 276kg
Max load: 150kg

Starter: electric and kick
Brakes: front 300mm single disc/ 210mm rear disc (Combined Braking System)

Wheels: Front: 110/70-17 Rear: 130/70-17
Seat height: 780mm
Length: 2040mm
Width: 800mm
Height: 1110mm
Wheelbase: 1330mm
Odometer: km

Speedometer: Dual marked
Max Speed: (approx): 60mph
Fuel consumption: (as recorded on the COC)

Emissions: 47 g/km

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AJS 125cc YBR maintenance information

Maintenance Information

Tyre pressure - front:      33 psi solo or with passenger (not to exceed 36psi)

Tyre pressure - rear:       33 psi solo or with passenger (not to exceed 36psi)

Tappet clearance In:       0.15mm

Tappet clearance Ex:      0.15mm

Engine oil type:               10w40 Class API, SG (Silkolene Super 4)

Engine oil quantity:         1.0 - 1.1L (check on dip stick)

Spark plug type:              NGK CR6HS (x1)

Air filter part number:     1690100-050000
Oil filter part number:     Gauze type, clean and replace

Front fork oil capacity:   220cc (each leg)

Front fork oil type:          RSF 7.5

Torque Settings:

Front axle nut                            45Nm
Rear axle nut                             65Nm
Steering stem nut                      30Nm

Swinging arm axle nut              60Nm

Rear sprocket nut                      30Nm
Cylinder head bolt M8 x 1.25    22Nm
Spark plug M10 x 1.00             12.5Nm

Magneto rotor                            70Nm

General 8.8 or 9.8 fasteners:
M6 10Nm

M8 25Nm
M10 50Nm
M12 85Nm

For more information refer to your Owner's Hand Book or
contact your nearest AJS Dealer.


​A range of accessories are available including,  NIMESA rear shocks, rear luggage rack, racing style side number boards, AJS key fobs, coffee mugs and more ...

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