Wiseco PK1080 68mm 2-Stroke Top End Piston Kit +2.00mm Oversize 526M06800

The Wiseco PK1080 is a complete 2-stroke top end piston kit designed as a +2.00mm oversize solution at 68.00mm bore for the Honda ATC250R and TRX250R. This all-inclusive kit provides everything needed to overbore or rebuild the top end in a single purchase, eliminating the guesswork of sourcing individual components.

Kit Contents:

• Forged high-performance piston (68.00mm / 526M series)
• Piston rings (Wiseco rings matched specifically to this piston)
• Wrist pin
• Circlips
• Complete top end gasket set

Wiseco Pro-Lite Forged Piston Advantages:

• Aerospace-grade aluminum forging — the forging process compresses and aligns the material's grain structure for superior density and strength compared to cast alternatives
• Impact and fatigue resistance — forged pistons withstand the stresses of high-performance 2-stroke applications where cast pistons may fail catastrophically
• Optimized strength-to-weight ratio — each forging is engineered using 3D design techniques and finite element modeling to maximize performance while minimizing mass
• Proper installed clearance — each piston is designed to produce maximum power, minimal wear, and the best cylinder seal at operating temperature
• USA forged — Wiseco is the only U.S. aftermarket piston manufacturer that produces pistons exclusively through the forging process

Wiseco rings are application-specific and are not interchangeable with other ring types. All Wiseco pistons are priced and supplied with rings, wrist pins, and circlips included. The PK1080 kit also adds a complete top end gasket set for a true one-stop rebuild solution.