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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
intuitive smart navigation
like SRAM’s XX1
A single rear derailleur for all gearing combinations
this bottom bracket is specifically built to work seamlessly with electronic shifting systems while providing smooth rotational performance
but the seams are too close together to be fully taped)
Shimano Di2 Junction A SM-EW90-B 5 Port 42mm intuitive smart navigationThe Shimano SM EW90 E Tube Cockpit Junction Boxes link your Di2 shifters to the main frame junction box using SD50 E tube wires. Serving as the OEM front wiring kit for Dura Ace Di2 9070, this component streamlines your electronic shifting setup. This functional unit features an integrated LED battery charge level indicator, a rear derailleur adjustment mode, and an internal battery charging port. All connected Di2 components require matching firmware
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