Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck MFPN=HBMHN but protrusion through rim is

but protrusion through rim is the same as a 12mm DT nipple)

model SB20 diameter 31

} Two full complement cartridge bearings with labyrinth seals

The ultra-reliable freehub system transfers the highest pedaling loads resulting in direct power transmission

Model Racer M Brompton Wheel Front Reach 47-57mm Color Pewter Weight 194g

Shimano EW90-A Di2 Cockpit Junction Box 3-Port/ not for Flight Deck MFPN=HBMHN but protrusion through rim isShimano 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