SUPPORT USER MANUAL SpeedBox 1.2 for Shimano (E8000, E7000, E6100, E5000) It’s very easy to install the SpeedBox tuning kits. We have prepared instructions and videos for your convenience. You can do it in a few minutes. Installation video: Printable instructions for download: Text, graphics E7000 a E6100 and graphics E8000 Photo tutorial: in progress FAQ: in progress Share Tweet Pin It