Hi all new to forum and to trials recently acquired a montesa 315r 1999 currently stripped down for rebuild but in need of piston and rings I know the oem rings are discontinued and that where I need help what are my options going forward any knowledge infomation greatly appreciated. 

 

Thanks in advance 

On 31/12/2017 at 10:02 AM, Andyb1987 said:

Hi all new to forum and to trials recently acquired a montesa 315r 1999 currently stripped down for rebuild but in need of piston and rings I know the oem rings are discontinued and that where I need help what are my options going forward any knowledge infomation greatly appreciated. 

 

Thanks in advance 

Just a simple question, why not machine the piston to accept a commonly available ring-set? In Australia we have many places where you can buy rings to suit all sorts of applications, so as long as you can find some of suitable diameter, you can usually get the ring grooves machined to suit - or am I missing something??

Search for '315 pistons', on this forum, all the links you need are there.