(13020-275-000) RING SET, PISTON Forum
Regarding the ring set in question, are the first and second rings suited for a 1.5mm groove in the piston or for a 1.8mm groove. It is my understanding that the earlier models used the thicker 1.8mm rings and the later models the 1.5mm first and second rings. I need rings for a 1965 CB77 with 1.5mm thick ring grooves.
Your input regarding this matter would be greatly appreciated.