NOS OEM NEW ORIGINAL Yamaha 1970-72 R5 Piston Rings .50 278-11610-21

NOSYamaha 1970 1971 1972 R5 2ND O/S 0.50mm Piston Ring Set PN:278-11610-21

1968-71 YAMAHA YCS1 2ND 0.50 OS RING SET NOS OEM 164-11601-22 2VT-11601-21

1970-72 YAMAHA R5,R5B,R5C,RINGS 2ND OVERSIZED 0.50 NOS OEM P/N 278-11610-21

NOS 1970-72 YAMAHA R5 350 2ND OVER .50 PISTON RINGS 278-11610-21-00

NOS Yamaha R5 Piston Ring Set 2nd Oversize (0.50) 278-11610-21-00

NOS Yamaha 2nd 0.50 O/S Piston Ring Set 1970 1971 1972 R5 278-11610-21

NEW YAMAHA OEM NOS PISTON RINGS / 278-11610-21 .50 OVER / R5 R5B R5C