
The Story
Piston 4-Stroke Kitย 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 2024-2025ย
PROX 01.2453.C
Bore Standard - 97.00mm
Piston Size - C. 96.97mm
Compression Ratio - 13.0:1
Description
Piston 4-Stroke Kitย 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 2024-2025ย
PROX 01.2453.C
Bore Standard - 97.00mm
Piston Size - C. 96.97mm
Compression Ratio - 13.0:1




















