What category is the 2011 AJS NAC12 125?

The 2011 AJS NAC12 125 has a Category of Sport.

What is the engine size of the 2011 AJS NAC12 125?

The 2011 AJS NAC12 125 has a Capacity: of 124.00 ccm (7.57 cubic inches).

What type of engine does the 2011 AJS NAC12 125 have?

The 2011 AJS NAC12 125 has a Engine type of Twin, four-stroke.

What is the engine power of the 2011 AJS NAC12 125?

The 2011 AJS NAC12 125 has a Power of 11.39.

Is the 2011 AJS NAC12 125 air cooled or liquid cooled?

The 2011 AJS NAC12 125 has a Cooling system of Liquid.

How many gears does the 2011 AJS NAC12 125 have?

The 2011 AJS NAC12 125 has a Gearbox of 5-speed.

How much does the 2011 AJS NAC12 125 weigh?

The 2011 AJS NAC12 125 has a Dry weight of 153.0 kg (337.3 pounds).

How much does the 2011 AJS NAC12 125 weigh?

The 2011 AJS NAC12 125 has a Weight incl. oil, gas, etc of 168.0 kg (370.4 pounds).

What is the seat height of the 2011 AJS NAC12 125?

The 2011 AJS NAC12 125 has a Seat height of 770 mm (30.3 inches) If adjustable, lowest setting..

AJS NAC12 125 - 2011 Specifications and Reviews

Name: 2011 AJS NAC12 125
Brand: AJS

The 2011 AJS NAC12 125 is an entry-level commuter bike designed for budget-conscious new riders seeking practical urban transportation. With its electric starter, lightweight 168kg frame, and manageable 770mm seat height, it prioritizes accessibility and ease of use. The bike excels as an affordable, reliable daily runabout for city riding and short-distance commuting.

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General information
Category	Sport
Year	2011
Model	AJS NAC12 125

Engine and Transmission Specifications
Emission details	Euro 3
Clutch	Wet, multiplate
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Ignition	Coil CDI
Fuel system	Carburettor
Bore x stroke	44.0 x 40.0 mm (1.7 x 1.6 inches)
Power	11.39
Engine type	Twin, four-stroke
Capacity:	124.00 ccm (7.57 cubic inches)

Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Double disc
Rear tyre dimensions	130/90-15
Front tyre dimensions	90/90-18
Rear suspension	Twin reservoir shocks
Front suspension	Telescopic fork
Physical measures and capacities
Fuel capacity	18.00 litres (4.76 gallons)
Wheelbase	1,510 mm (59.4 inches)
Seat height	770 mm (30.3 inches) If adjustable, lowest setting.
Power/weight ratio	0.0744 HP/kg
Weight incl. oil, gas, etc	168.0 kg (370.4 pounds)
Dry weight	153.0 kg (337.3 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Color options	Red
Factory warranty	12 months
Starter	Electric

Performance Profile & Rider Fit

11.4 hp

Peak Power

Best For

Track15%

City55%

Cornering40%

Daily Riding55%

Touring35%

Passenger25%

Rider Profile

Best For	This is best suited to new or learner riders working within a small-capacity licence category rather than experienced riders seeking performance.
Purpose	It is designed as an entry-level sport-styled commuter for learners, not a genuine performance machine, given its 125cc twin producing under 12 horsepower.
Rider Fit	The 770mm seat height and 153kg dry weight make it approachable for shorter or less physically strong riders, though the unusually long 1510mm wheelbase and 168kg wet weight add some heft for its class.
Character	It has a sporty look with double front discs and cruiser-like rear tyre proportions, but its performance is modest and its personality leans more toward relaxed novelty than aggression.
Not Ideal For	This is not for experienced riders wanting real speed, highway touring capability, or any serious off-road use.

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

Rider Fit Visualizer

2011 AJS NAC12 125 Rider Ergonomics Assessment

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Feet:

At 770mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2011 AJS NAC12 125, with a cramped knee angle of around 65 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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