- Machined from 2618-T6 high-tensile forged aluminum
- Dome/dish features smooth flowing radii; requires no deburring or preparation
- Specifically engineered for extreme applications including professional competition
- Pro Series pistons available for select models: features include internal and external bracing, dedicated embossed forgings for weight reduction, specialized processes such as internal milling the internal struts, along with dedicated accumulator groove and forged side relief
- Includes pins, pin fitment, lock and rings
- Made in the U.S.A.
Yamaha -- WR 450 F -- (2016, 2017); Yamaha -- YZ 450 F -- (2016, 2017, 2015, 2014); Yamaha -- YZ 450 FX -- (2016, 2017)