Wiseco Pistons 431M07100 Off-Road Piston - 71.00mm 2-Stroke Kit

The Wiseco 431M07100 is a high-performance forged piston designed specifically for the Honda ATC250R (1981-1984). This precision-engineered piston features a 71.00mm bore diameter, offering a 1.00mm overbore for enhanced displacement and performance.

Key Features:

• Premium forged construction for superior strength and durability over cast pistons
• 71.00mm bore diameter (1.00mm oversized)
• Designed specifically for 2-stroke off-road applications
• Condensed grain structure aligned to piston features for maximum strength-to-weight ratio
• Enhanced resistance to impact and fatigue under extreme racing conditions
• Manufactured in the USA with complete in-house forging and tooling control
• Includes piston, rings, wrist pin, and circlips

Wiseco's forging process creates a superior grain structure that delivers higher mechanical properties compared to brittle cast pistons. This results in a piston that can withstand the demanding conditions of high-performance motorsport applications without catastrophic failure. The optimized strength-to-weight ratio maximizes performance while maintaining durability for dirt bikes, ATVs, and other powersport vehicles.