Ibis Internal Cable Port For the Ibis Mojo 3, Mojo HD3, Tranny 29, Ripley and Ripley LS, use these cable ports and stops to run whatever drive train you would like. Choose the appropriate option for your specific cable routing. Features: Black Polycarbonate 4mm ports for use with derailleur or dropper post cable housing 5mm ports for use with Rockshox Reverb's hydraulic housing | Ibis Internal Cable Routing Ports Single Cable Port, 4mm