PISTON KIT 2023-25 YAMAHA YZ 450F 97mm, PROX 01.2453.A

Piston 4-Stroke Kit 97.00mm Bore.

Ready to install, ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. - ProX pistons are precision machined on the latest, state of the art CNC equipment and use the same low-expansion, low-friction piston alloy all major Japanese engine manufacturers use. - Uses an OEM style tin coating to assist the break-in process when you first start your machine.

Yamaha
WR 450F 2024-2025
YZ 450F 2023-2025
YZ 450FX 2024-2025 

PROX 01.2453.A

Bore Standard - 97.00mm
Piston Size - A. 96.95mm
Compression Ratio - 13.0:1