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

NOS OEM Yamaha Piston Ring Set 0.50 1970-1972 350 R5 Street 278-11610-21

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

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Yamaha OEM New piston rings 278-11610-21 #3313

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

1970-1972 Yamaha R5 Piston Rings .50 MM ,2nd,278-11610-21

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