PROX 97mm PISTON KIT B, YAMAHA YZ450F 2010-2013

Prox Piston Kit 95.00mm Bore.
ProX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese

engine manufacturers. ProX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc.
Cross reference numbers ONLY. 33D-116A0-00-00, [33D-11631-00-00 + 33D-11603-00-00 + 33D-11633-00-00 + 93450-19052-00]

Yamaha YZ450F (2010-2013),

PROX 01.2440.B