Engineered by Kawasaki for the enduro - offroad motorcycle segment, the 2011 Kawasaki KLX 125 pairs a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 10.2 HP (7.4 kW) at 8,000 rpm while maximum torque reaches 10 Nm (7.4 lb-ft) at 6,400 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 81.6 HP per liter and a 1,600 rpm working window between peak torque (6,400 rpm) and peak power (8,000 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 KLX 125 measures 113 kg (249 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (11.08 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,285 mm (50.6 in) wheelbase engineered for quick, flickable steering geometry. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 2005 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
81.6 HP/L
Power-to-Weight
0.09 HP/kg (11.08 kg/HP)
Power Band Window
6,400–8,000 rpm
Standover Height
830 mm (32.7 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power10.2 HP (7.4 kW)) @ 8000 RPM
Torque10.0 Nm (1.0 kgf-m or 7.4 ft.lbs) @ 6400 RPM
Compression9.5:1
Bore x Stroke54.0 x 54.4 mm (2.1 x 2.1 inches)
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionDigital DC-CDI
LubricationForced lubrication, wet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet mDouble disk, manual
Chassis
Frame TypePerimeter, steel
Rake27.2°
Trail101 mm (4.0 inches)
Front Suspension33 mm telescopic fork
Rear SuspensionUni-Trak
Wheelbase1285 mm (50.6 inches)
Ground Clearance255 mm (10.0 inches)
Wheels & Brakes
Front Tyre70/100-19
Rear Tyre90/100-16
Front BrakesSingle disc
Front Brake Ø240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
Dimensions & Weight
Dry Weight113.0 kg (249.1 pounds)
Power/Weight0.0902 HP/kg
Seat Height830 mm (32.7 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.
