>>but 7/10 always has been the
>>standard.
Just a further comment. I'd read Jan identifying tubes this way and didn't
question it because he almost always writing about the technical trials bikes
which I assumed would use specially drawn tubing and a 1mm butt would make
sense. That's where the stress is concentrated and a thick end would make a good
deal of sense, especially as most of those bikes were fillit brazed. Thanks,
Jan, for clarifyhing this.
Phil Brown
San Rafael. Calif.