Zumasrus

YSR 50 2nd over Rings (Genuine new old stock 40.5mm)

This is new old stock that fits the yamaha 2nd over piston. these are no longer available! Includes top ring, bottom ring and expander ring.

This is NOT what yamaha is offering as an "alternate part" which does not fit the original 2nd over piston. AP rings only fit AP pistons