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A Carrillo Platinum Series STD-bore piston for 2004–2019 Yamaha YFZ450/R models, specified with a 14.0:1 compression ratio and profiled pin bore. Built as a direct-replacement STD bore piston for rebuilds or performance refreshes, it maintains stock bore sizing while providing the Platinum Series construction and pin-bore profile expected for YFZ450/R applications.
Carrillo 04-19 Yamaha YFZ450/R Platinum Series Piston - STD Bore Piston - 14.0:1 Profiled Pin Bore
