Shimano SM-JC40 Di2 Junction-B model-genius930 Diamondback Mason Pro 17in Medium

Diamondback Mason Pro 17in Medium - 2016

swimming (pool/open water)

We have built pulleys that can handle the load better than stock

Easton EC70 SL Carbon/Aluminum Stem 31

Shimano SM-JC40 Di2 Junction-B model-genius930 Diamondback Mason Pro 17in MediumShimano 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