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} Functional
material stainless steel color silver weight 80g
Cross seals designed for MTB
Ensures smooth gear shifts
Shimano EW-JC302 Di2 Junction Box - 2 Ports Use With EW-SD300 Cage Assembly } FunctionalShimano EW JC302 Di2 Junction Box 2 Ports Use With EW SD300. Shimano Di2 Frame Junction BoxFrame 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
