Replacement retainer if yours is worn out or lost.  
This retainer is has a no hassle installation for quick change sprocket swaps with simple readily available tools (pliers and screw driver).

This spring clip retainer takes the place of the OEM two bolt retainer and fasteners when a FRITZCO sprocket is used.

All sizes of new FRITZCO sprockets come with a quick change retainer included, this is only a replacement.

This retainer can only be used with FRITZCO sprockets and can not be used with thin OEM type sprockets.