At the heart of the 2021 Kawasaki KLR 650 super motard motorcycle, Kawasaki features a 652 cc (39.8 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 38.2 HP (27.9 kW) at 6,000 rpm while maximum torque reaches 51.5 Nm (38 lb-ft) at 4,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 58.6 HP per liter and a 1,500 rpm working window between peak torque (4,500 rpm) and peak power (6,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the KLR 650 measures 196 kg (432 lbs) wet (curb), translating to a power-to-weight ratio of 0.19 HP/kg (5.13 kg per horsepower). Rider ergonomics and chassis geometry center around a 870 mm (34.3 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 23-liter (6.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 29 indexed model years from 1987 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
58.6 HP/L
Power-to-Weight
0.19 HP/kg (5.13 kg/HP)
Power Band Window
4,500–6,000 rpm
Standover Height
870 mm (34.3 in)
Engine
Displacement652.0 ccm (39.79 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power38.2 HP (27.9 kW)) @ 6000 RPM
Torque51.5 Nm (5.3 kgf-m or 38.0 ft.lbs) @ 4500 RPM
Compression9.8:1
Bore x Stroke100.0 x 83.0 mm (3.9 x 3.3 inches)
Fuel SystemCarburettor. Keihin CVK40
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionElectric CDI
LubricationForced lubrication, wet
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet multi-disc, manual
Chassis
Frame TypeSemi-double cradle, high-tensile steel
Rake30.0°
Trail121 mm (4.8 inches)
Front Suspension41mm telescopic fork
Front Travel200 mm (7.9 inches)
Rear SuspensionUni-Trak single-shock system with 5-way preload and stepless rebound damping
Rear Travel185 mm (7.3 inches)
Wheelbase1540 mm (60.6 inches)
Ground Clearance210 mm (8.3 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre130/80-17
Front BrakesSingle disc. Two-piston calipers.
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc. Single piston
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.196.0 kg (432.0 pounds)
Seat Height870 mm (34.3 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.
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.