CP Pistons brand Yamaha YZ250F 2005 - 2013 FULL RACE Project X Platinum kit for use in high performance and racing engines; for use with a standard size bore of 77mm; and stock stroke of 53.6mm; 250cc engine; 14-1 compression ratio; Piston uses a pin that is 1mm smaller than stock and works with Carrillo connecting rod that is 2mm longer than stock. Kit includes light weight piston; light weight piston pin; piston rings, pin locks, Carrillo racing connecting rod, and Cometic gasket kit. In addition to the standard features; this FULL RACE piston also includes coated piston skirts; dual pin oiling; broached oilers and lateral gas ports to provide improved ring seal and greater power.
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