15% off
Product Description
Shimano Di2 Frame Junction Box
- Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
- All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
- Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/
Shimano SW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box, 2-Port with Charging
at Mike's Bikes
$123.24
$144.99
15% Discount
You save $21.75
In Stock
at Mike's Bikes
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