Athena Piston Kit - S4F05400011B Yamaha YZ 125 1997-2004 Brand_J.w. Speaker Include reusable zip ties for

Include reusable zip ties for assembly

0:1 Units Kit Product Name Piston Kit Style High Performance Bore - Oversize Standard Bore Size 94

• 1x Cometic Drain Plug O-Ring

peak performance and the coolest engine and oil temperatures obtainable

Athena Piston Kit - S4F05400011B Yamaha YZ 125 1997-2004 Brand_J.w. Speaker Include reusable zip ties forFeatures High resistance to mechanical and thermal stresses Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions Equipped with piston rings that guarantee less friction with the OE cylinder producing a higher performance Made by reverse extrusion For OE cylinder. Specs Displacement 124 cc Product Name Piston Kit Compression Ratio Stock Piston