+1 (671) 477-1776 | 256 E Marine Corps Dr., Hagatna, Guam, 96910, USA

Yamaha Motocross Bike – YZ125



Light weight, but heavy on the fun factor. The 125cc liquid‑cooled 2‑stroke is the most fun you can have on two wheels.


  • Modern Styling
    The front fender, front number plate, radiator shrouds, side number plates, air box, rear fender, fork guards, as well as the rear brake disc protector, rear brake caliper protector and wider foot pegs offer modern, aggressive styling —just like the 4-strokes.
  • Lightweight Frame
    A light aluminum frame houses a patented YPVS™-equipped ripper of an engine for an awesome power-to-weight ratio.
  • Race-Ready Features
    Complete with an aluminum handlebar, titanium foot pegs and gripper seat, the YZ125 is ready to race out of the crate.
  • Ideal Balance
    A pure motocross machine, the light and nimble YZ125 is the perfect choice for riders stepping up from the 85cc class.
  • Rider-Friendly Chassis
    Ultra light weight means nimble handling and less fatigue.
  • 270mm Front Brake
    The large 270mm front disc brake coupled with high-performance pad material offers outstanding machine control and performance, plus exceptional stopping power and controllability.



Engine Type: 125cc liquid-cooled 2-stroke; reed-valve inducted

Bore x Stroke: 54.0mm x 54.5mm

Compression Ratio: 8.6~10.7:1

Fuel Delivery: Mikuni® TMX 38

Ignition: CDI

Transmission: Constant-mesh 6-speed; multiplate wet clutch

Final Drive: Chain


Suspension / Front: KYB® Speed-Sensitive System inverted fork; fully adjustable, 11.8-in travel

Suspension / Rear: KYB® single shock; fully adjustable, 12.4-in travel

Brakes / Front: Hydraulic disc, 270mm

Brakes / Rear: Hydraulic disc, 245mm

Tires / Front: 80/100-21 Dunlop® MX52

Tires / Rear: 100/90-19 Dunlop® MX52


L x W x H: 84.1 in x 32.6 in x 51.0 in

Seat Height: 38.4 in

Wheelbase: 56.8 in

Rake (Caster Angle): 26.0°

Trail: 4.3 in

Maximum Ground Clearance: 14.4 in

Fuel Capacity: 2.1 gal

Wet Weight***: 207 lb


Request a Quote

Additional information

Product Manufacturer