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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
They have a larger diameter than usual
420HDR chain: Specially reinforced to ensure maximum durability even under demanding conditions
with exchangeable inlet adapter (therefore fits on every 4-stroke)
} PROX casted pistons are made from a specific aluminum alloy which lowers frictions anf maximizes reliability
premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job
Kroonplaat XTRIG ROCS Tech blauw Yamaha YZ250F/YZ450F They have a larger diameterDeveloped in collaboration with the best MX GP teams and tested under extreme, high level competition conditions, these products are produced in state of the art machining centers using the best materials and alloys. Due to their ingenious technical inventions in combination with quality machining and impeccable finishing, they offer many options for improving engine behavior and allow the driver to adjust the engine according to his own preferences.
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