Since 2009 Shimano Di2 has been at the forefront of the electronic shifting revolution. The EW-SD50 Battery Mount comes with a short mount for frames that have a specific Di2 battery mounting location on the chainstay or down tube, available with a 10mm or 16mm mounting bolts, and is compatible with either internal or external wiring kits. If you are mounting your battery using the water bottle cage mounts on the down tube or seat tube, choose the long battery mount. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions.
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Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.
Get free 1-day California shipping with your $50 purchase today, on most orders. Please note this offer is only available to physical shipping addresses in California(no PO Boxes), and oversize charges still apply on some heavy/large itemsDue to manufacturer restrictions, this product cannot be shipped to the following locations: