I'm thinking about getting a Nashbar trailer. Anybody know if the yoke that attaches to the bike's rear axle will clear a 29" mountain bike tire?

:)

I run a 700 wheelset with no trouble.

Update: The Nashbar trailer does in fact fit a 29er. The yoke will rub the tire when it's turned really far while walking the bike, but that would be an easy fix with a grinder.