2025 YZ125

More powerful, capable and advanced, this two-stroke evolution from the iconic YZ heritage is the perfect choice for riders stepping up from the 85cc class. Offering the ideal blend of performance, reliability, and usability, the competition-ready YZ125 develops the skills you need to win.

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Chassis
Brakes (Front)	270 mm floating disc / twin piston caliper
Brakes (Rear)	240 mm disc / single piston caliper
Suspension (Front)	Fully adjustable 48 mm inverted fork / 300 mm (11.8") wheel travel
Suspension (Rear)	Fully adjustable link Monocross / 315 mm (12.4") wheel travel
Tires (Front)	80/100-21 Bridgestone® Battlecross X20F
Tires (Rear)	100/90-19 Battlecross X20

Critical Data
Colour(s)	Yamaha Racing Blue Anniversary White
Fuel Capacity	8 litres (1.8 imp. gal)
Ground Clearance	365 mm (14.4")
Height	1,295 mm (51")
Length	2,135 mm (84.1")
Seat Height	980 mm (37.6")
Wet Weight	95 kg (209 lb)
Wheelbase	1,445 mm (56.9")
Width	825 mm (32.5")

Engine
Bore and Stroke	54.0 x 54.5 mm
Compression Ratio	8.2~10.1:1
Displacement	125 cc
Engine	2-stroke, liquid-cooled, crankcase reed-valve, single
Final Drive	Chain
Fuel Delivery	Keihin PWK38S carburetor
Ignition / Starting	CDI / Kick
Transmission	Constant mesh, 6-speed