Wiseco PK1393 Top End Piston Kit Honda - 54.0mm 2005-2007 CR125

The Wiseco PK1393 is a complete top end piston kit designed for the 2005–2007 Honda CR125, featuring a 54.0mm bore diameter (859M). This kit delivers everything needed for a full top end rebuild, combining Wiseco's race-proven engineering with premium materials that meet or exceed OEM standards.

The forged piston is manufactured from aerospace-grade aluminum alloy, providing an exceptional strength-to-weight ratio critical for high-revving two-stroke motocross applications. CNC machined to tight tolerances, the piston features an optimized cam shape and profile engineered for peak horsepower output and extended service life.

Kit Includes:

• Forged piston – Dedicated forging with aerospace alloy construction for superior strength and reduced reciprocating mass
• Top end gasket kit – Premium materials providing best-in-class sealing technology that exceeds OEM standards
• Top end needle bearing – Precision machined for strength and reduced friction at the small end
• High-performance ring set – Engineered for extended service life and sustained power delivery
• High-quality alloy wrist pin – Consistently true and durable for reliable power transfer

Wiseco top end kits are the choice of professional race teams across all disciplines of motorsport. The PK1393 kit simplifies the rebuild process by supplying all critical top end components in a single, quality-matched package, ensuring proper fitment and compatibility throughout.