Description
The Wiseco PK1381 is engineered for CR250R riders who need a proven top-end rebuild that restores or exceeds factory performance. If you’re experiencing power loss, worn compression, or simply demand race-proven components, this complete piston kit delivers the reliability and precision two-stroke engines require. With Wiseco’s decades of racing heritage behind every component, you’re investing in pistons trusted by professional racers and serious enthusiasts alike.
- 66.40mm bore diameter
- Pro-Lite piston design
- CNC-machined construction
- Forged piston material
- High-performance ring set
- Complete gasket package
- Honda CR250R 2005–2007
- Low-friction specs
- Race-ready assembly
- Bolt-on installation






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