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Made in the USA
Fitment:
GAS GAS EC 450F 2013 - 2015
YAMAHA WR 450F 2003 - 2015
YAMAHA YZ 450F 2003 - 2009
Bore Diameter |
95.00 |
Compression Ratio - Actual |
12.5:1 |
Included Components |
Ring Set #3741XS, Wrist Pin #S600, CirClip #CW18 |
Piston Diameter |
94.94 |
Piston Material |
2618 |
Piston Oversize |
STD |
Product Series |
4 Stroke Forged Series |
Product Types |
Piston Kits |
Skirt Coating |
Yes |

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.