ProX Piston   2-ring Piston 66.40 (C. 66.36mm)

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.

Beta
250RR Enduro 2T 2013 - 2021,
Xtrainer 250 2018 - 2021.
 

PROX 01.7313.C