Wiseco GP Series Piston Kit 54.00mm Standard Yamaha YZ125 97-04

Description

The Wiseco GP Series Piston Kit (54.00mm, Standard) is engineered for high-performance and durability in Yamaha YZ125 models from 1997 to 2004. Forged from high-silicon aluminum alloy, this kit provides superior strength, reduced weight, and increased heat transfer for enhanced longevity and power. Each kit includes a forged piston, titanium nitride-coated rings, wrist pin, and circlips. The piston features an Electra-Coated crown, ring groove, and pin bore to resist wear and heat damage, while the ArmorGlide® skirt coating minimizes friction for maximum efficiency. Designed for both racing and trail applications, the GP Series offers maximum compression ratios and a predictable powerband.

Notes: Cylinder sleeves must be purchased separately. Service intervals may be extended with Racer’s Choice pistons. Piston is electra coated, has no intake window, is pinned on centerline, and features a longer skirt than stock.