Wiseco Pistons 4752M05450 High-Performance Forged Piston Kit Bore Compression - 54.50mm 11 1

The Wiseco 4752M05450 is a high-performance forged piston kit designed for Yamaha TTR125 dirt bikes. This 0.50mm oversize piston features a 54.50mm bore diameter and delivers an 11:1 compression ratio for enhanced power and performance. Engineered and manufactured in the USA, this piston kit represents over 70 years of racing heritage and cutting-edge technology.

Key Features:

• Forged from high-silicon aerospace-grade aluminum alloy for superior strength and durability
• 54.50mm bore diameter (0.50mm oversize) with 11:1 compression ratio
• Complete kit includes piston, rings (2146XE ring set), wrist pin (15mm x 1.752"), and circlips
• CNC machined with diamond-turned finish for precise tolerances and perfect surface quality
• 126cc displacement designed specifically for 4-stroke powersports engines
• Optimized forging process increases tensile strength and improves heat transfer
• Reduced weight compared to cast pistons while maintaining superior durability

What's Included:

• One forged piston
• 2146XE piston ring set (54.50mm)
• S571 wrist pin (15mm diameter x 1.752" length, non-chromed)
• CW15 round wire pin locks (15mm pair)

Wiseco's forged pistons are engineered to withstand the demanding conditions of high-performance motorsport applications. The forging process compresses the aluminum's molecular structure, creating a denser material with aligned grain flow that resists impact and fatigue better than cast alternatives. Each piston is designed using advanced 3D modeling and finite element analysis to achieve the optimal balance of strength and weight for maximum performance and longevity.

Important Note: This is an oversize piston designed for cylinder boring applications. Only Wiseco replacement rings are compatible with Wiseco pistons. Professional installation and proper cylinder preparation are recommended.