NEW Shimano SM-JC40 Di2 External Frame Junction Box 4-Port variant-size-41-eu-mens Chainring BCD: 110

Chainring BCD: 110

seat stays

Includes stiff aluminum faceplate and stainless steel hardware with TORX heads on all bolts for precision torque readings and ease of adjustment

BST Asymmetric design combines Stan’s legendary easy tubeless inflation with a stronger

Battery: Specialized M3-700

NEW Shimano SM-JC40 Di2 External Frame Junction Box 4-Port variant-size-41-eu-mens Chainring BCD: 110Shimano 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 Mounts underneath the bottom bracket