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.
Compatibility: Shimano Di2 SM-BTR1 battery
Available in Long or Short mounts to fit your specific frame
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