The axiom streamliner disc deluxe rear bike rack is specifically for use on bikes with disc brakes this bike rack is for use on bikes without threaded eyelets and is easy to attach so you can choose your pannier bags and be on your way quickly axiom streamliner disc deluxe rear bike rack features patent pending design specifically for use on bikes with disc brakes designed for use on bikes without threaded eyelets a lightweight low profile solution for mountain commuting and fitness bi