NEW Shimano SM-JC40 Di2 External Frame Junction Box 4-Port price_changed_on_2022-09-22 open shell

open shell

Tires: Teravail Washburn 700c x 50mm

TIRES: Chaoyang E-Liner City 700x45C

Large nylon strap secures bag to saddle rails

Shimano EP600 motor

NEW Shimano SM-JC40 Di2 External Frame Junction Box 4-Port price_changed_on_2022-09-22 open shellShimano 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 Mounts underneath the bottom bracket