Piston 2-STK KIT 54.50mm 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.
Replacements parts. PROX RING SET 02.2021.050, PROX PISTON PIN ,

PROX CLIPS 05.1612C,

Yamaha RD250 LC (1950-2014),

PROX 01.2021.050