- Shimano Y0J620000 Deore XT FC-M8100 crank arm fixing bolt
- Fits XT and SLX 12 speed cranks: FC-M8100, FC-M8120, FC-M8130, FC-M7100, FC-M7120 and FC-M7130
- Also fits both 1x11 and 2x11 GRX FC-RX810 gravel cranksets
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