SHIMANO Di2 RS910 Junction-A - 2-Port - Handlebar Port FBPost 41205: compatible with all twist

41205: compatible with all twist style shifter

Elite 3D gel pads reduce bulk and improve connection to the handlebars

The S-curved shoulder harness is contoured just right to fit a woman’s body and also delivers improved comfort and stability

puncture protection

or electric bike

SHIMANO Di2 RS910 Junction-A - 2-Port - Handlebar Port FBPost 41205: compatible with all twistShimano Di2 Frame Junction Box Frame 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 tubeproject. shimano. com