ProX ?Piston 2-ring Piston 66.40
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.
For spare rings. prox 02.7307,
Nominal size 66.34mm
Gas-Gas MC250 (1997-2018),
Gas-Gas EC250 2T (1997-2018),
PROX 01.7307.B
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