YAMAHA YZ125 2002-2004 WISECO Pro-Lite Piston Kit 54.50 MM Bore 54.45 piston 797M05450 ^Sale

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Made in the USA

Fitment:  

YAMAHA  YZ 125  2002 - 2004

Wiseco is unique among aftermarket piston manufacturers in the United States because it produces pistons strictly using the forging process. Starting with aerospace-grade aluminum, the forging process compresses the material's molecules, increasing the density of the aluminum and aligning the grain flow of the alloy, resulting in a high-quality product that's resistant to impact, fatigue, and has improved material properties such as ultimate strength and ductility, which is a material's ability to stretch or move without breaking under tensile strain. For high-performance race applications (where increased horsepower and compression can stress an engine's components further than a stock engine), it's of critical importance.