43,669 bikes · 493 makes Add a bikeLog inRegister
Naked Motorcycles

2009AJS ECO-125

Rate this bike
Click to vote

24 fields on record

The 2009 AJS Eco-125 is an accessible all-rounder designed for budget-conscious commuters and novice riders seeking reliable, economical transport. Its modest 10 hp single-cylinder engine prioritizes fuel efficiency and low running costs over performance. The bike is best known for combining practical features like electric and kick start with straightforward carburetted engineering that's easy to maintain.

Capacity
124.0 ccm
Engine
Single
Gearbox
5-speed
Dry weight
114.0 kg
Seat height
760 mm
Power
10.1 HP (7.4 kW) @ 8000 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2009 AJS ECO-125

vs the 2008
Spec20082009
Wheelbase — 1080 mm (42.5 inches)
Other years 2008 2009

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 15Agility 70Comfort 55Off-road 20Touring 25Road manners 55
Off-road & trail20%
Cornering40%
City riding80%
Daily riding70%
Touring20%
Two-up25%
Track5%
Best for
It's designed primarily for simple, low-cost commuting and everyday errands rather than performance riding.
Built for
The bike has a friendly, unintimidating, and utilitarian character suited to relaxed, low-speed riding.
Not ideal for
It's not suited for riders seeking highway touring, high speed, or serious 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 760mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2009 AJS ECO-125, with a moderate knee angle of around 100 degrees and a slightly forward 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 →

Find bikes that fit your height →

Full specifications

Engine
Capacity
124.0 ccm
Power
10.1 HP (7.4 kW) @ 8000 RPM
Engine type
Single
Power/weight ratio
0.0886 HP/kg (dry)
Bore x stroke
54.0 x 54.0 mm
Cooling system
Air
Fuel system
Carburettor
Starting
Electric & kick
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
1080 mm
Seat height
760 mm
Dry weight
114.0 kg
Chassis & suspension
Front suspension
Telefork
Rear suspension
Adjustable load, oil damped twin shocks
Brakes & wheels
Front brakes
Single disc
Rear brakes
Expanding brake (drum brake)
Front tyre
2.75-18
Rear tyre
90/90-18
Other
Color options
Black, metallic blue, Rosso red

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 20082009
Capacity 124 cc 124 cc
Dry weight 114 kg 114 kg
Seat height 760 mm 760 mm

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

Rider Reviews

—
☆☆☆☆☆
Be the first to rate

Own one? Add it to My Garage and write an owner review with an Owner badge.

Common questions

What is the engine size of the AJS ECO-125?

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

What engine power does the AJS ECO-125 have?

The 2009 AJS ECO-125 has a Power of 10.1 HP (7.4 kW) @ 8000 RPM.

How many gears does the AJS ECO-125 have?

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

How much does the AJS ECO-125 weigh?

The 2009 AJS ECO-125 has a Dry weight of 114.0 kg (251.3 pounds).

Shop this bike

Affiliate links

We may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.

Similar bikes

Same category, weighted similarity

More AJS Motorcycles