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Shimano Dura Ace Di2 Battery
The lithium-ion battery is now available in two versions, suitable for both external and concealed internal mounting.
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Shimano Dura Ace Di2 Battery – SM-BTR1
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The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts.
E-tube Di2 uses a fully removable individual cable system from the battery indicator junction box enabling fine tuning with the correct cable length to each component for easy and tidy fitment.
EW-SD50 individual wires are available in varying lengths, there is no need (or facility) to cut these cables.
- Reliable and secure water resistant connectors
- Discounts are not available on Team Sky Partner products. Usage of discount codes and tokens will be blocked at the checkout for orders containing these items.
- Due to their bulky nature, Team Sky Partner products may ship separately from other Rapha items in your order.
- Shipping lead times on Team Sky Partner components vary, and are likely to exceed the standard Rapha shipping timelines.
- Team Sky Partner products are not eligible for repair under the standard Rapha repair service.