I use 'The Knob" on several bikes and it is great! there are two band lengths available and the shorter is definitely not long enough to go around steer tube. It will conform to non round things like shaped seat stays, etc. I also have a Paul-like mount I made myself out if a section of tubing cut from a bent set of handlebars. The problem with the Paul setup is it can want to twist around on you when you hit bumps. If you tighten it enough to not twist you can risk stripping aluminum threads. Both work but I like Knob better as you can put it anywhere, it does not twist and it is lighter.