If you have narrow or narrowish heels, then you also want to check out the Mavic Scorpios. I've narrow heels and these work very nicely for me. I also ride Speedplay Frogs and it is a good combination for me. I should have, perhaps, went one size up on the Scorpios but that isn't a fault of the shoe but of mine for only trying on one size without really understanding how they should fit. This will be my third season with these shoes and I really do like them. I just always wear thin socks all year.