Wiseco Pistons PK1445 Top End Piston Kit 89mm 11:1 Compression Ratio

The Wiseco PK1445 Top End Piston Kit delivers race-proven performance for 2003-2007 KTM 450 EXC, MXC, and XC-W models. Engineered with an 89mm bore and 11:1 compression ratio, this complete kit provides everything needed for a professional-grade top end rebuild.

Complete Kit Includes:

• Dedicated forging piston manufactured from aerospace-grade aluminum alloy for superior strength-to-weight ratio
• High-performance ring set designed for extended service life and sustained power output
• Premium top end needle bearing with precision machining for reduced friction
• High-quality alloy wrist pin for consistent performance and durability
• Wiseco top end gasket kit with advanced sealing technology that exceeds OEM standards

Performance Features:

• CNC-machined piston crown with optimal cam shape and profile for peak horsepower
• Race-proven design trusted by top professional race teams across all disciplines
• Dedicated forging specific to this application ensures perfect fitment and reliability
• Premium materials engineered for maximum strength, reduced friction, and extended engine life

Wiseco is the choice of professional riders and engine builders worldwide, offering OEM-quality components with performance advantages that deliver measurable results on the track and trail.