I thought the rules now said that you had to pay some crazy fee to some bloke who's had 30 minutes training on a fancy bit of technology, who will then tell you that, due to your inseam measurement and arm to nose ratio that you are indeed on the wrong size bike and should consider a frame that is 2mm smaller? which is great, because he just so happens to have that exact size in stock.
and whilst you are at it, your saddle is the wrong shape, you're using the wrong cleat float and crank length and due to the size of your manhood, you should try really be riding in a short with less padding, perhaps these rather dashing Rapha shorts, digitally designed using the latest materials which are in no way similar to Lycra.
or have misjudged the modern bicycle industry?