Allows for the mounting of an ISCG-05 chainguide or bashguard to a frame without ISCG-05 tabs. Only compatible with frames featuring (threaded) BSA BB shell.
- Mounts between drive-side BB cup and shell.
- Incompatible with some carbon frames.
- Best used with metal BB shells.
- The adapter's tabs sit flush with the face of the BB shell.
