This frame junction box connects via SD300 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction and battery mount.Â
Note: This is designed for use with Shimano SD300 E-tube wires, which are used on the current 12 speed road groupsets and Shimano EP8 ebike systems.
This product was added to our catalog on August 5, 2022











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