Didn't go far, and that was good as I had to walk all the way back (well but for a bit of a downhill, I coasted that.) I'd failed to tighten the outer two sprockets on the freewheel and, for reasons known only to them, they unscrewed and jammed against the drop out. The outermost one came off, but the second needed persuasion, of which I had none at that point. A gent on a STEEL Miyata, and the woman who lived in the near-by house both offered to help me out.