I have yet to decide where to mount the bag. I was considering a custom leather bag where the rear pegs go. Wifie hasn't been riding much and soon she will loose her pegs. If'n I mount it up front I was thinking of mounting the plate inside the bag and have a single vertical flat steel bracket bolted to the plate through a slit in the bag. This would hold it off the forks and look pretty custom. I don't ghet the tube thing, a picture is worth a thousand words.