Athena: Yamaha YZ125/ YZ125X 20-21 STOCK BORE FACTORY KIT 54mm 05-2021


SKU: P4004-8510-0017 Category:


Athena 2-Stroke Cylinder kits
Race kits include a nickle carbide coated cylinder ported to factory works specs. Special
hard anodized exhaust valves, complete piston kit and top end gasket kit included. Factory
cylinder kits include all parts in the race kit with aluminum cylinder head with removable
brass dome allowing for higher compression and anti-detonating features.


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Make Model Year
Yamaha YZ125 2005 - 2021
Yamaha YZ125X 2020 - 2021
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