Part No. 56-W4865+00A.HY
YAMAHA YFZ450R/X 2009-2018,
YAMAHA YFZ450 2004-2013,
The new HYPERDRYVE line of pistons is composed of a space- age hypereutectic aluminum alloy developed by NASA. Engineered to maintain its high tensile strength up to 700

F(370C), 50% higher than a conventional cast piston, this gives HYPERDRYVE the strength to perform under operating conditions normally reserved for forged pistons.