Piston forged (77.97mm) cylinder Athena and original for Yamaha WR 250 F (2015-2018) / YZ 250 F (2014-2015) / YZ 250 FX (2015-2016).
Diameter: 77.97 mm
Manufactured by Italian manufacturer Athena, the kit includes all components shown in the picture and complies with ISO 9001 and ISO 14001:2015 quality standards.
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