Positioned in AJS's sport motorcycle lineup, the 2015 AJS R7 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 10.6 HP (7.7 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 85.5 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 R7 measures 127 kg (280 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (11.98 kg per horsepower). Rider ergonomics and chassis geometry center around a 810 mm (31.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,333 mm (52.5 in) wheelbase engineered for quick, flickable steering geometry. The 18.5-liter (4.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's AJS archive, this model family spans 2 indexed model years from 2015 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
85.5 HP/L
Power-to-Weight
0.08 HP/kg (11.98 kg/HP)
Standover Height
810 mm (31.9 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsBalance shaft
Power10.6 HP (7.7 kW)) @ 8500 RPM
Bore x Stroke56.0 x 49.0 mm (2.2 x 1.9 inches)
Fuel SystemCarburettor
Fuel ControlOverhead Valves (OHV)
IgnitionCoil, CDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet. multi-plate
Performance
Emission DetailsEuro 3
Chassis
Front SuspensionUSD Telescopic fork
Rear SuspensionSingle shock
Wheelbase1333 mm (52.5 inches)
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre150/60-17
Front BrakesDouble disc
Front Brake Ø295 mm (11.6 inches)
Rear BrakesSingle disc
Rear Brake Ø230 mm (9.1 inches)
Dimensions & Weight
Dry Weight127.0 kg (280.0 pounds)
Power/Weight0.0834 HP/kg
Seat Height810 mm (31.9 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.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.