It’s cleaner. Those shift cables are nicely tucked under bar tape, away from the elements, and won’t get caught on people’s bikes, tree branches, or a poorly placed course-marking pole. [Update: ...

Stefan Schumacher of Germany speeds down Ombarde Pass using Shimano's Di2 electronic shifting system during the 2008 Tour De France. Photo: Christophe Ena/AP Japanese parts manufacturer Shimano is ...