Wiseco forged piston 57mm (W559M05700) Yamaha YZ125 86-88

Wiseco offers a complete range of models and years of popular pistons for trail and racing applications.

- Bore diameter: 57 mm
- Stroke length: 50.00 mm
- High-performance piston
- Forged from high-silicon aluminum alloy for maximum strength
- Durability, longevity and enhanced power
- Innovative forged design and piston skirt deliver high power and maximum torque
- Kits include forged pistons, piston rings, piston pins and circlips
- High-tech piston design features maximum compression ratios, ultra-rigid armored forgings and nitride-coated titanium rings to add more power, which lasts longer
- Each piston is epoxy-treated at the tread, ring grooves and pin bore for maximum wear resistance and protection against micro-welding, seizure and detonation.

NB: Before replacing a piston, accurately check the wear dimension of the cylinder using a suitable bore gauge and a 1/100th micrometer.