Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck Model=CN-HG601 Chain 0mm 269mm J-bend Black Box

0mm 269mm J-bend Black Box of 100

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Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck Model=CN-HG601 Chain 0mm 269mm J-bend Black BoxShimano 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