I saw on a used bike for sale last week an attachment for the throtte tension screw. It is a small thumb paddle looking thing that attaches with a single set screw.. I have been looking everywhere I can think of but can't seem to find it and the dealership where I saw it wasn't sure. Not even sure what it's actually called and I know the above description isn't great. I've seen similar products but not the one I'm looking for. Hopefully there is someone out there that can give me some suggestions on where to find what I'm looking for.