no tape involved. sorry I haven't replied till now. that's just metal strapping from Home Depot. (I love that stuff) I got lucky I guess cuz this invention is still going strong and doesn't seem to move. I guess it's a function of how short the mount is and the amount of friction caused by the squeezing. I also made weird mount for my left drop bar. man that thing is weird but also works reliably (several years now). That one bounces a little but for the most part it stays where I put it. Here's a pic of that weird setup.