Electronic gear shift systems were initially a great innovation on road bikes (since 2009), now they are also available for MTB. They have names like Di2 or EPS, the former from Shimano and the second from Campagnolo. Tthey change gears on the bicycle unbelievably comfortable and do it with a high degree of accuracy. Such drivetrains require matching accessories. These include electric wires, distributors or junction boxes. From the control unit to the interface used for error detection on your PC or changing the buttons' functions, we offer everything you need in terms of accessories or replacement parts for your electronic bike drivetrain system. Competitive prices and bike accessories may be delivered worldwide from our shop.