Tim, I've a good use for the used CT125 piston/rings 

 I've seen the little TS50 Gaucho beasty and a deal has been struck..almost 

 biggest prob now is it just needs to find it's way home 
 
 main difference with the '75 model, lower shock mounts moved fwd is about it I believe. There might be more but that's the main contention 

 nothing drastic but the early arm doesn't fit the '75 so break out the grinder and welder if you wanna go pre'75 
