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Naked Motorcycles

2009AJS CSR NKT1 125

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The 2009 AJS CSR NKT1 125 is a 125cc naked street bike for learner riders who want sporty looks. Its liquid-cooled engine makes 11.4 hp, with a 787 mm seat and an 18-litre tank.

Capacity
124.0 ccm
Engine
Parallel Twin
Gearbox
5-speed
Dry weight
153.0 kg
Seat height
787 mm
Power
11.4 HP (8.4 kW)
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How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 22Agility 65Comfort 45Off-road 15Touring 30Road manners 55
Off-road & trail15%
Cornering50%
City riding60%
Daily riding55%
Touring25%
Two-up25%
Track15%
Best for
It is best suited to light urban riding and short leisurely trips rather than outright speed or long-distance work.
Built for
It has a quirky, cruiser-styled sportbike look with a small-capacity twin engine, offering charm and character over raw performance.
Not ideal for
It is not suitable for riders wanting high speed, serious touring range, or any 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 us
At 787mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 AJS CSR NKT1 125, with a moderate knee angle of around 115 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Full specifications

Engine
Capacity
124.0 ccm
Power
11.4 HP (8.4 kW)
Engine type
Parallel Twin
Power/weight ratio
0.0745 HP/kg (dry)
Bore x stroke
44.0 x 40.0 mm
Cooling system
Liquid
Fuel system
Carburettor
Starting
Electric
Ignition
Coil CDI
Torque
Not on record - add it
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Clutch
Wet, multiplate
Dimensions & weight
Wheelbase
1320 mm
Seat height
787 mm
Dry weight
153.0 kg
Fuel capacity
18.00 litres
Chassis & suspension
Front suspension
Telefork
Rear suspension
Twin reservoir shocks
Brakes & wheels
Front brakes
Single disc
Rear brakes
Single disc
Front tyre
90/90-18
Rear tyre
130/90-15
Other
Color options
Red

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

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Common questions

What is the engine size of the AJS CSR NKT1 125?

The 2009 AJS CSR NKT1 125 has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the AJS CSR NKT1 125 have?

The 2009 AJS CSR NKT1 125 has a Power of 11.4 HP (8.4 kW).

How many gears does the AJS CSR NKT1 125 have?

The 2009 AJS CSR NKT1 125 has a Gearbox of 5-speed.

How much does the AJS CSR NKT1 125 weigh?

The 2009 AJS CSR NKT1 125 has a Dry weight of 153.0 kg (337.3 pounds).

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