Wiseco PK1704 Yamaha YZ250 02-20 GP Series(808M06640) Piston

Wisecos GP Series forged 2-stroke pistons build on the tried-and-true base of the Pro-Lite. Wiseco GP Series 2-stroke pistons incorporate additional performance and durability enhancing features including an Electra-Coated crown, ring groove(s), and pin bores plus ArmorGlide skirt coating, making them perfect for endurance and sustained-RPM 2-stroke applications. From play riders putting in hard hours to consistent competition, GP Series 2-stroke pistons are up to the challenge.

• Designed for endurance and sustained-RPM 2-stroke riding
• Engineered, forged, and machined in the USA in Mentor, OH
• Designed with optimized features for long service life and top-end power
• Electra-Coated crown, ring groove and pin bore resists potential wear, combustion heat damages, and ring micro-welding
• ArmorGlife skirt coating reduces friction to optimize performance potential
• Extra lightening operations for enhanced throttle response
• High-quality ring(s), wrist pin(s), and circlips included