650b wheels are nothing new and companies like Jamis Bicycles have been making 650b bikes for many years now. What has happened in the last 12 months is an amazingly fast progression and development of 650b bikes and the parts to slap on them. It seems as though this has been the summer of 650b bike announcements and I’m now in desperate need of throwing a leg over one asap, but before I do, here is some actual data behind the differences from both a 26″ and 29″ wheel. I definitely learned a lot from this web site and I hope you do as well.