The EW-JC302 2 Port Junction connects EW-SD300 wires in any Shimano electronic Di2 setup. It sits neatly inside the frame and is extremely reliable with water-resistant connectors.
This is the connector for your Di2 upgrade cable to join cables or to components. Make sure you know exactly what you need to do before you start upgrading your Di2 software. Do not upgrade just one component - you have to do the whole system at the same time.
Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.
Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.
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From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.
Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.
