2025 Kawasaki Z125 Pro Technical Analysis & Specification Breakdown
At the heart of the 2025 Kawasaki Z125 Pro motorcycle, Kawasaki utilizes a 125 cc engine layout. Internal engine geometry specifies a bore and stroke of 56.0 x 50.6 mm with a 9.8:1 compression ratio.
On the scales, the Z125 Pro measures 102 kg (225 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1 mm (0 in) wheelbase engineered for quick, flickable steering geometry. The 7.4-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Kawasaki archive, this model family spans 9 indexed model years from 2016 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
805 mm (31.7 in)
Engine
Displacement125 cc
Engine Details125cc, air-cooled, 4-stroke, SOHC 2-valve single
Compression9.8:1
Bore x Stroke56.0 x 50.6 mm
Fuel SystemFuel injection: ø24 mm x 1
IgnitionDigital
LubricationForced lubrication, wet sump
Transmission
Gearbox4-speed, return
Final DriveChain
ClutchWet multi-disc, manual
Chassis
Frame TypeBackbone, high-tensile steel
Front Suspensionø30 mm inverted fork / 100 mm (3.9 in)
Rear SuspensionOffset laydown single-shock with adjustable preload / 104 mm (4.1 in)
Wheelbase1,175 mm (46.3 in)
Wheels & Brakes
Front Tyre100/90-12 49J
Rear Tyre120/70-12 51L
Front Brakesø200 mm petal disc with single-piston caliper
Rear Brakesø184 mm petal disc with single-piston caliper
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.
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.
