Shimano crankset with their new direct mount chainring attachment system you'll need a tool to remove and install the chainrings.
12 speed Shimano cranks that use their direct mount chainring attachment system
- XTR FC-M9100, FC-M9120, FC-M9120
- XT FC-M8100, FC-M8120, FC-M8130
- SLX FC-M7100, FC-M7120, FC-M7130
- Deore FC-M6100, FC-M6120, FC-M6130
Tool is also compatible with Shimano BB-MT800 BSA Bottom Bracket Cups.