Engineered by AJS for the sport motorcycle segment, the 2008 AJS CR3-125 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 11 HP (8 kW) at 8,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 88.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the CR3-125 measures 115 kg (254 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (10.45 kg per horsepower). Rider ergonomics and chassis geometry center around a 787 mm (31 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,320 mm (52 in) wheelbase engineered for quick, flickable steering geometry.
Specific Output
88.7 HP/L
Power-to-Weight
0.1 HP/kg (10.45 kg/HP)
Standover Height
787 mm (31 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power11.0 HP (8.0 kW)) @ 8500 RPM
Bore x Stroke56.5 x 49.5 mm (2.2 x 1.9 inches)
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multiplate
Chassis
Wheelbase1320 mm (52.0 inches)
Wheels & Brakes
Front Tyre70/90-17
Rear Tyre100/80-17
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight115.0 kg (253.5 pounds)
Power/Weight0.0957 HP/kg
Seat Height787 mm (31.0 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
