Wiseco Pistons 4574M07600 High-Performance Forged ATV Piston Kit Compression - 76mm 11 1

The Wiseco 4574M07600 is a high-performance forged piston kit engineered for Honda TRX300EX ATVs (1993-2008). This oversized piston kit features a 76.00mm bore diameter (2.00mm oversize) and delivers an 11:1 compression ratio for increased power and performance over stock configurations.

Key Features:

• In-house forged construction for superior strength and durability compared to cast pistons
• 76.00mm bore diameter (2.00mm oversize) for rebuilding worn cylinders
• 11:1 compression ratio optimized for high-performance applications
• Condensed grain structure aligned to part features for maximum impact and fatigue resistance
• Optimized strength-to-weight ratio for improved throttle response
• Complete kit includes piston, rings, wrist pin, and circlips
• Designed and manufactured in the USA with precision forge tooling

Wiseco's forging process creates pistons that withstand extreme racing conditions and high-performance demands that would cause cast pistons to fail. The superior grain structure of forged pistons provides higher mechanical properties and resistance to the stresses of aggressive riding. This piston kit is ideal for racers and enthusiasts rebuilding their TRX300EX engine or seeking increased performance from a high-compression setup.