(HC) New Old Stock Honda Piston Rings CB771364A-CR S3 (0.50mm) fits; sub number 13030-275-000 

CA77 1960-1964

C77 1960-1964

CB77 1961

CA78 1960-1964

CL77 1965

Please check that this part fits your Motorcycle/ATV/Scooter before bidding or purchasing. Thank-you

I also combine shipping.