I bought this to help inflate the rear wheel on a spoked bike. There is very little room on my spoked bike to get to the valve so this seemed like the answer. After a bit of work, I put on the extension cord and tightened it as far as I could with my hand. The extension was still a bit loose and didn't seem to fit the valve very well. There was no way I could get a tool to tighten it more, so I had to try using it that way. Also, if I have to take out my tools to put this thing on, what's the…