I recently purchased a 44 cm Specialized WSD Ruby Carbon Compact bike. The LBS had to order it from the company. The saleperson, who is wonderful, said they just don't stock them because there isn't much demand for them. They did have one left in my size from last year which was a really good deal so I did get to test ride it. But I hated the color, so I didn't buy it. The LBS still has it. I am pretty sure that's why they don't stock the smaller sizes. they don't want to mark them down to sell them.