Originally Posted by
NormanF
27.5 is appropriate for small riders. I'm 5'7" and ride a 29er. I have to do a dismount to get my foot down and stop safely. It may not be possible for riders smaller than me to do that plus you run into front wheel overlap issues.
For such people a frame that comes between the 29er and traditional 26" side is appropriate.
This can be a problem for longer-travel bikes built for any wheel diameter, when you have the saddle set for near full leg extension.