Originally Posted by
lightspree
Not quite sure exactly how this was set up. Could you expand or detail it a bit?
I assume you know what two sided velcro is, it has the loop stuff on one side and the hooks on the other.
I cut a rubber strip long enough to wrap around the tube about 3 or 3.5 times. When I started to wrap it, I put tension on the rubber so that it would grip the tubing well, when I had about a half to three quarter of a wrap of rubber left, I then overlapped that with starting to put the two sided velcro over it. I am sure this is not very clear, but I do not have a good photo so to show. The suggestions above for tape are good too, but I tried velcro because I wanted something that I could easily remove and put on later and tape is not as easy to remove. You might want to try it with tape on the innertube rubber strips, and if that works well for you then use that.
I first tried just electrical tape, but when I took the tape off the frame, some of the clear coat that had been put on over the paint stuck to the electrical tape instead.
My bag did not have a strap that goes on the downtube, I added one, see second photo but as I noted above this is not really that good of a photo to show this.