Shimano Dura Ace SM-EW90-A Di2 3 Port Junction Box (A) model-tarmace5 Throw it on after a

Throw it on after a hard ride

minimizes rolling resistance -Actual width of installed tire can vary by 6mm or more depending on inner rim width and inflation pressure

Additional features include two front pockets

FSA BB86 Bottom Bracket Ceramic Composite Cups

Shimano Dura Ace SM-EW90-A Di2 3 Port Junction Box (A) model-tarmace5 Throw it on after aAll 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 SM EW90 A 3 Port Cockpit Junction Box connects 1 pair of Di2 shifters to the frame junction box via 3 SD50 E tube wires OEM front wiring kit for Dura Ace Di2 9070 LED battery charge level indicator Rear Derailleur