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Trials Bikes

2010AJS JSM Trail 125

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The 2010 AJS JSM Trail 125 is a lightweight trial bike designed for beginner and intermediate riders seeking off-road adventure. Powered by a modest 124cc single-cylinder four-stroke engine producing 11 horsepower, it excels in technical terrain with its USD front fork and linked rear suspension. Best suited for trail riding and light competition, this compact machine offers accessible performance and nimble handling.

Capacity
124.0 ccm
Engine
Single, four-stroke
Gearbox
5-speed
Dry weight
115.0 kg
Seat height
760 mm
Power
11.0 HP (8.1 kW)
⇄ Compare with another bike + Add to garage All model years
Other years 2010 2011

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 14Agility 87Comfort 30Off-road 92Touring 15Road manners 20
Off-road & trail92%
Cornering40%
City riding25%
Daily riding20%
Touring10%
Two-up5%
Track10%
Best for
It is built purely for technical trials riding over rocks, logs, and steep obstacles at very low speeds rather than for any road-going transportation.
Built for
The bike feels nimble, responsive, and playful, rewarding precise throttle and balance input rather than outright power.
Not ideal for
It is not suitable for riders wanting highway speed, long-distance touring comfort, or carrying a passenger.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Full specifications

Engine
Capacity
124.0 ccm
Power
11.0 HP (8.1 kW)
Engine type
Single, four-stroke
Power/weight ratio
0.0957 HP/kg (dry)
Bore x stroke
54.0 x 54.0 mm
Fuel system
Carburettor
Starting
Electric
Transmission
Gearbox
5-speed
Transmission type
Manual
Final drive
Chain
Performance
Top speed
100.0 km/h (62.1 mph)
Dimensions & weight
Wheelbase
1400 mm
Seat height
760 mm
Dry weight
115.0 kg
Fuel capacity
8.50 litres
Chassis & suspension
Front suspension
USD fork
Rear suspension
Pro Shock linked.
Brakes & wheels
Front brakes
Single disc
Rear brakes
Single disc
Front tyre
3.00-21
Rear tyre
4.10-18
Other
Color options
Black, white, orange

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 20102011
Capacity 124 cc 124 cc
Dry weight 115 kg 115 kg
Seat height 760 mm 760 mm
Fuel capacity 8.5 L 8.5 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

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Common questions

What is the engine size of the AJS JSM Trail 125?

The 2010 AJS JSM Trail 125 has a Capacity of 124.0 ccm (7.57 cubic inches).

What engine power does the AJS JSM Trail 125 have?

The 2010 AJS JSM Trail 125 has a Power of 11.0 HP (8.1 kW).

How many gears does the AJS JSM Trail 125 have?

The 2010 AJS JSM Trail 125 has a Gearbox of 5-speed.

How much does the AJS JSM Trail 125 weigh?

The 2010 AJS JSM Trail 125 has a Dry weight of 115.0 kg (253.5 pounds).

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