SL Carbon Series Down Tube Gear Blank PlateAn original replacement part The SL &
SL R Carbon series of frames feature an interchangeable downtube port for compatibility with internally or externally routed cables and Di2 systems
The blanking plate is required for mechanical gear systems when a LEVEL 5 handlebar system is fitted or when the Di2 charging port is mounted within the handleabr ends rather than on the downtube