4 sets Piston rings 77-78 CB750K 76-78 CB750A CB750F SOHC STD 13011-392-004

Description

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Honda went to thinner rings in the last years of the SOHC motor.  These are those.
Set of 4 Piston Ring Sets - Standard - 13011-392-004 - CB750 1976-1978
Set of 4 Standard piston ring sets for the stock bore Honda CB750 1976-1978, see specific fitment below. If you''re just freshening up your top end and having the cylinders honed, install a fresh set of rings to ensure a tight fit. Make sure the Letter stamped on the top two rings are facing up when installing them and stagger the ring gaps according to the manual.
Set comes with 4 rings and the oil ring spacer.
Features:
Ductile Iron Casting (FCD) is superior to OEM rings which were sometimes made from steel.
Superior tensile strength, ductility and elongation compared to steel rings.
FCD is even stronger than regular cast iron.
FCD is used in many automotive parts, which require strength and durability.
Be very careful when installing the cylinder over new rings, it''s helpful to have the proper tool to keep the rings compressed as you lower the cylinder over the pistons. Try to use only plastic tipped tools to prevent from scratching aluminum surfaces.
Replaces Honda Part Number: 13011-392-004
Ring Order:
Top Compression Ring (silver outer rim)
Second Ring (black outer rim)
Bottom Rings (3 pieces - Spacer in the middle - 1 thin ring on either side)
Fits Honda:
CB750A Automatic - 1976-1978
CB750F Super Sport - 1976 - Use from Engine #2551568 on
CB750F Super Sport - 1977 Use up to Engine SN 2612797
CB750K - 1977-1978