Description
The Wiseco PK1202 is engineered for YZ85 riders who demand reliable top-end performance without compromise. This complete piston kit delivers the precision bore diameter and optimized ring design necessary for consistent power delivery and throttle response across competitive and recreational riding. When your 2-stroke’s longevity depends on quality internals, this forged aluminum assembly is built to handle extended high-RPM abuse.
- Bore diameter: 47.50mm
- Material: Forged aluminum
- Construction: CNC-machined
- Piston rings: High-performance included
- Wrist pin: Included
- Circlips: Included
- Top-end bearing: Included
- Gasket set: Included
- Fitment: YZ85 (2002–2018)
- Installation: Straightforward top-end rebuild
- Application: 2-stroke engines









