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Shimano Dura-Ace / Ultegra Di2 SM-JC40 Junction Box
SKU: sm-jc40
¥3,861
is backordered. Please bear with us.
Shimano Dura-Ace / Ultegra Di2 SM-JC40 Junction Box
Junction box for Shimano Ultegra Di2 wire EW-SD50 with external routing. The junction box is for mounting under the bottom bracket. Front/rear derailleur, cockpit area and battery are connected here.
Excl. postage