rm 125 n

[LeighW]

just picked up a 125n going to change the piston and rings have seen some kits two ring some one ring whichis original or which is the best to use cheers leigh

[oldyzman]

I would use the two ring unless you want 11/10th's out of the bike. will last longer between rebuilds with two

[John Orchard]

http://www.ebay.com.au/itm/RM125-1977-1980-B-C-N-T-Wiseco-Piston-Kit-1mm-Oversize-VMX-/281201296286?pt=AU_Motorcycle_Parts_Accessories&hash=item4178e7439e

[Simo63]

I have a brand new genuine piston kit in the shed for an RM125N that I bought back in the day and never used.  It's a 2 ring setup and I would run with that to be honest.

[LeighW]

might take you up on that simo its coming down from qld in a week or so once iv got the head off seen what oversize it is il pm you cheers leigh

[Lozza]

Second rings are for soft cocks 

[oldyzman]

I'm so hard even if its a two ring piston, i take the lower on off! LOL :-)
Brett

[firko]

I'm so hard even if its a two ring piston, i take the lower on off! LOL :-)

The lower cast iron ring on the on the DT1 from Hell used to snag the exhaust port on the Warren Willing ported barrel and break so I left the bottom ring out and never had another problem.