Yamaha
2025 YZ125
Light, peaky 125 two-stroke. Teaches clutch and corner speed. Still a legitimate club-race weapon.
Motocross2-strokeIntermediate
Specs
US-catalog figures for setup math — not a window sticker. Weigh your bike and read the OEM sheet or owner’s manual before you order springs or sprockets. Source.
- Model year
- 2025
- Class
- Motocross
- Engine
- 125 cc 2-stroke
- Claimed power
- 34 hp
- Wet weight
- 209 lb
- Seat height
- 38.6 in
- Fuel
- 1.6 gal
- Front tire
- 80/100-21
- Rear tire
- 110/90-19
- Sprockets
- 13/48
- Gears
- 6-speed
- Cooling
- Liquid
- Rider level
- Intermediate
- Typical MSRP
- $7,299
Run the numbers
Open a calculator with this bike in mind. Punch in the spec from the table.