Athena S4C05800001A Big Bore Piston Kit 58.00mm +4.00mm Yamaha YZ125 2005-2021

Athena Big Bore Piston Kit


Athena engineers ensure advanced technical solutions and the highest quality standards equal to or better than those adopted in OE production, so as to guarantee performance and reliability.
Each piston, engineered in Italy by Athena R&D department, is tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate its performance even in the most extreme conditions.
The proven quality of Athena pistons is offered at an extremely affordable price.


 Technical features
Big End Pin Diameter (mm)  15x10x45
Piston Diameter (mm)  57.94  (+4.00mm Oversize)
Piston Head Type  Flat
Piston Pin Type  Biconical
Piston Type  Cast


YAMAHA YZ125  2005-2021