I know a couple of shops that won't allow you a test ride if they don't have your size. They logic being it isn't a fair evaluation of how the bike will ride, and everything else you can see from the model they do have. I am not defending it, but I have run into it. I even had one call me back about 3 weeks after I was in and said the bike I was looking at came in at the size I needed and would I like to come in and have a look.