NAMURA 77mm HYPERDRYVE PISTON KIT B, YAMAHA YZ250F 2005-2013

Part No. 56-W9701.B

GasGas
EC 250F � 2010-2015

Yamaha
WR 250F � 2005-2009
WR 250F � 2012-2013
YZ 250F � 2005-2013

PISTON KIT NAMURA HYPERDRYVE SIZE B, 13.5.1. Compression
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.
Replacement PISTON RINGS USE # NX-20030R