At the heart of the 2021 Ajp SPR 510R enduro - offroad motorcycle, Ajp pairs a 501 cc (30.6 cu in) oil & air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 38 HP (27.7 kW), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 75.8 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 SPR 510R measures 119 kg (262 lbs) dry, translating to a power-to-weight ratio of 0.32 HP/kg (3.13 kg per horsepower). Rider ergonomics and chassis geometry center around a 960 mm (37.8 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,450 mm (57.1 in) wheelbase engineered for balanced agility and highway composure. The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
75.8 HP/L
Power-to-Weight
0.32 HP/kg (3.13 kg/HP)
Standover Height
960 mm (37.8 in)
Engine
Displacement501.0 ccm (30.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power38.0 HP (27.7 kW))
Compression12.9:1
Bore x Stroke97.0 x 67.5 mm (3.8 x 2.7 inches)
Valves/Cylinder4
Fuel SystemInjection. Get fuel injection 45mm
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
LubricationWet sump
CoolingOil & air
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeAluminum/steel/Composite
Front SuspensionZF Sachs Ø48mm fully adjustable
Front Travel300 mm (11.8 inches)
Rear SuspensionZF Sachs progressive system with reservatory fully adjustable
Rear Travel300 mm (11.8 inches)
Wheelbase1450 mm (57.1 inches)
Ground Clearance355 mm (14.0 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre140/80-18
Front BrakesSingle disc. 2-piston calipers
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc. Single-piston caliper
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight119.0 kg (262.4 pounds)
Power/Weight0.3193 HP/kg
Seat Height960 mm (37.8 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.
