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This is the correct plug-and-play wire for Shimano's E-Tube Di2 electric-shifting systems. It comes in sixteen different lengths, so choose the one(s) that's right for your Di2 E-Tube wiring configuration.

Shimano Chainring Bolts - For use with FC-6800 46t outer chainring - Color: Black - Length: 10 mm - Material: Aluminum - Type: Torx