Positioned in AJP's enduro - offroad motorcycle lineup, the 2018 AJP PR7 Adventure 650 utilizes a 659.7 cc (40.3 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 48 HP (35 kW) at 6,000 rpm while maximum torque reaches 58 Nm (42.8 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 72.8 HP per liter and a 500 rpm working window between peak torque (5,500 rpm) and peak power (6,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the PR7 Adventure 650 measures 155 kg (342 lbs) dry, translating to a power-to-weight ratio of 0.31 HP/kg (3.23 kg per horsepower). Rider ergonomics and chassis geometry center around a 920 mm (36.2 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,540 mm (60.6 in) wheelbase engineered for planted straight-line stability. The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's AJP archive, this model family spans 3 indexed model years from 2018 to 2020, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
72.8 HP/L
Power-to-Weight
0.31 HP/kg (3.23 kg/HP)
Power Band Window
5,500–6,000 rpm
Standover Height
920 mm (36.2 in)
Engine
Displacement659.7 ccm (40.25 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsMinarelli engine
Power48.0 HP (35.0 kW)) @ 6000 RPM
Torque58.0 Nm (5.9 kgf-m or 42.8 ft.lbs) @ 5500 RPM
Bore x Stroke100.0 x 76.4 mm (3.9 x 3.0 inches)
Valves/Cylinder4
Fuel SystemInjection. Delphi
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeAluminum/steel
Rake26.5°
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)
Wheelbase1540 mm (60.6 inches)
Ground Clearance320 mm (12.6 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre140/80-18
Front BrakesSingle disc. 2-piston calipers
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Single-piston caliper
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight155.0 kg (341.7 pounds)
Power/Weight0.3097 HP/kg
Seat Height920 mm (36.2 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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
