Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port Rear Der/Shifter Compatibility-BOX 8-Speed P200D Volume: 12L Size: 47

P200D Volume: 12L Size: 47 x 24 x 10cm (18

5-75mm travel) 375lb Black

Using a layer of Gore windstopper fleece to insulate and protect from the wing

New pre-installed 11-speed cassette

Shimano SM-JC41 Di2 Internal Frame Junction Box 4-Port Rear Der/Shifter Compatibility-BOX 8-Speed P200D Volume: 12L Size: 47Shimano Di2 Frame Junction BoxFrame 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