Well, we ordered the Zeros, I hopped on the bike and for the life of me, COULD NOT get into them. All my effort to force the shoe wouldn't do it. Not sure what that's all about. I can understand it being hard at first and getting easier as the shoe goes in and out a few times, but that was crazy. So, now I'm back to debating whether to just go with the ultegra, what I'm used to (105's were on my 2007 ruby)......i just wanna get out and RIDE! I haven't tried the new one out yet and we just got dumped with more snow overnight.