A review of a KHS 650b hardtail. I think that 650b bikes just look right. You would appear to get some of the rolling advantage of a 29er without the bike looking like it runs on wagon wheels. The 27.5 inch wheel still seems to be uber-niche at the moment though and I imagine component and tyre choices are pretty limited. It will be interesting to see if it gains some market share over the next couple of years.
Full review here: http://www.mtnbikeriders.com/2010/02/03/khs-sixfifty-606-review/