Ian, thanks for all you do but this one hit a nerve :). [ rant ] Those mounting bosses are only useful if you can actually get the mount. It seems to be available everywhere except in the US where its availability is after my first race. I'm trying to get one of my friends north of the border to smuggle it to me but this seems like something Canyon should be able to do for me.[/rant] At least I was lucky enough to get the bike.