Shimano E-Tube Di2 External Junction B Box
Best Price:
Buy Shimano E-Tube Di2 External Junction B Box for $29.69 at @  Cambriabike.com
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                    Price Range: $29.69 - $32.99
                
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                                $32.99 | $29.69 | 
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Product Details
Brand
Shimano
                        Manufacturer
N/A
                        Part Number
71203
                        GTIN
689228827448
                        Condition
                        
                    Product Description
                    
            Shimano E-Tube Di2 External Junction B Box The Shimano Di2 SM-JC40 is designed to connect SD50 E-tube wires along four points; front derailleur, rear derailleur, cockpit junction and battery mount. The B-Box is used to split the main wire from Junction A to the front and rear derailleurs. It can also be used to connect a seatpost mounted battery to the system. Specifically designed for externally mounted systems and mounts underneath bottom bracket shell - for External systems use SM-JC41.
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