Originally Posted by
somnambulant
Ah.. duh! Gotcha. Then yes, there's definitely folding 650B tires. eg.
http://www.velo-orange.com/grboc65x32ti.html
I'm looking for something to use as a porteur/city bike, not as a tourer (although the versatility is nice), so my needs are a little different. I'm not sure that I'd want a 650B bike to take someplace remote because of the parts availability issue.
I just turned the c-dale that was the mtb into a commuter/light touring/city bike, albeit without the fenders or rack (yet). Put on mustache bars, new rigid fork with rack mounts, brooks flyer and slicks. Rises great and super comfy. With barcons, cantis and 26 inch wheels I figure and issues on a longer ride are easily fixed for minimal cost and fuss.
With some patience and searching an older steel mtb could cheaply be converted into a city/poteur bike. Most will have rear fender and rack mounts, and a rigid fork will have at least fender mounts. The mtb fork I picked up from urbane has fender and rack mounts, and the fender mounts on the fork legs as well. I'll post some pics of the bike soon.