Engineered by Kawasaki for the scooter motorcycle segment, the 2019 Kawasaki J125 utilizes a 125 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 54.0 x 54.5 mm (2.1 x 2.1 inches) with a 11.7:1 compression ratio.
On the scales, the J125 measures 182 kg (401 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 775 mm (30.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,555 mm (61.2 in) wheelbase engineered for planted straight-line stability.
Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 2016 to 2020, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
775 mm (30.5 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression11.7:1
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel ControlSingle Overhead Cams (SOHC)
LubricationForced lubrication, wet sump
CoolingLiquid
Chassis
Frame TypeTubular diamond
Trail113 mm (4.4 inches)
Front SuspensionTelescopi fork
Front Travel37 mm (1.5 inches)
Rear SuspensionTwin shocks
Wheelbase1555 mm (61.2 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.182.0 kg (401.2 pounds)
Seat Height775 mm (30.5 inches) If adjustable, lowest setting.
Overall Height1285 mm (50.6 inches)
Overall Length2235 mm (88.0 inches)
Overall Width800 mm (31.5 inches)
Other
StarterElectric
Color OptionsMetallic Flat Anthracite Black, Metallic Matt Gunmetal Grey
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
