YZ125 2026
The culmination of more than 50 years of Yamaha two-stroke innovation, the latest YZ125 is a bike built to take you to the VictorYZone.
Featuring lightweight race-bred engine internals and the renowned torque-boosting Yamaha Power Valve System (YPVS), the YZ125 develops hard-hitting power that keeps you out front.
Along with its advanced aluminium frame, class-leading KYB® suspension and ultra slim bodywork providing a high degree of controllability both on the ground and in the air, it's designed for competition straight out of the box.
Engine TypeLiquid-cooled, 2-stroke, reed-valve
Displacement (cc)125.0
Bore x Stroke (mm)54.0 x 54.5
Compression Ratio8.2 - 10.1 : 1
Lubrication SystemPremix
Fuel ManagementPWK38S
IgnitionCDI
Starter SystemKick
Fuel Tank Capacity (L)7.0
Final TransmissionChain
TransmissionConstant mesh 6-speed

