Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck MPFN-11A00471 Includes rubber dual lip labyrinth

Includes rubber dual lip labyrinth seals

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description universal bearing puller set

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Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck MPFN-11A00471 Includes rubber dual lip labyrinthShimano EW90 A Di2 Cockpit Junction Box 3 Port not for Flight Deck. Shimano Di2 Junction BoxAll 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