Originally Posted by
emily_in_nc
Do a forum search first - this has come up many times. I have a 650c bike and love it. It's most important to ride what fits, and not what some shop says is cool or not. At your height (I'm 5'2.5") I think 650s are going to be a must for you. Even with them, you may have a little toe overlap as I do, but likely less than with 700s, and depending on your torso and arm length, you might not have any toe overlap of the front tire.
There is nothing wrong with 650c wheels except for the fact that you can't buy them in tons of pretty colors like 700c, and carrying your own tube is a MUST as very few folks on a group ride will have that size, if you get a flat. They are fast to accelerate and lighter in weight than 700c's as well. I don't want to start a big debate here, but do a forum search -- you'll see that there are a lot of us here that love our 650c bikes!
And welcome to TE!
Emily