Honda CB750 Piston Ring Set - 1st Oversize (0.25mm.) - Replaces Honda OEM 13021-425-004 Mounts & Rubbers Fits Honda:

Fits Honda:

Compare the original exhaust layout

CB400F (1975-76)

GL1100A (1982-83)

and installed location

Honda CB750 Piston Ring Set - 1st Oversize (0.25mm.) - Replaces Honda OEM 13021-425-004 Mounts & Rubbers Fits Honda:Honda CB750 Piston Ring Set 1st Oversize (0. 25mm.) Replaces Honda OEM 13021 425 004. This piston ring set seals combustion pressure and controls oil at the piston when matched to the bore and ring grooves. Use only after measuring bore condition, piston to cylinder clearance, ring groove clearance, and installed ring end gap. Install each ring in its specified groove and orientation. Fitment Compatibility Fits Honda: CB750K (1979 82) CB750L (1979)