I also wear a size 9 shoe and my cycling shoes are 44c. They fit just fine but to get the sizing, I stood on a piece of paper and marked the farthest front and farthest rear point on both feet. I then measured the marks with a metric tape measure. If your measurement falls between, get the next size bigger. By the way, my shoes are the Shimano MT-41. According to the tag, they are sized 9.7 in US sizing. If some say they run small, they may be referring to the width. I have an average foot size which for a male is a D width. My shoes fit just fine but if you have a wide foot such as an E or EEE, you may have to have them stretched. If you are able to buy shoes "off the rack" you probably have a D width as well and the size would be accurate. Measure the foot length though because there's nothing worse than an ill fitting shoe.

Hi Josh,

In most cases you want your cycling shoes to fit very snug. But if you're still growing and do not want to buy a new pair of kicks every year, than you can go with a size ten. At your age your feet still have some more growing to do. Im sure you will have these for a long time, Shimano makes great gear and it wont be long before they fit you perfectly.