Indeed. I can't do it -- well, I've never really tried -- but I saw a guy doing it this morning. His bike definitely had derailleurs. (Though hmm -- I suppos

Indeed. I can't do it -- well, I've never really tried -- but I saw a guy doing it this morning. His bike definitely had derailleurs. (Though hmm -- I suppose I don't know for an absolute fact that it had a freewheel. But I've never heard of a rear cluster without a freewheel.)