John Jorgensen wrote:
>
(snip)
> I learned long ago that all top tubes are not level, tires have diameter variation, so a level base plane with a bare set of wheels shows not the intended but the actual.
John, I'm going with the assumption that the builder could build a level top tube and I measure the actual angle of the intersection of the tubes with protractor. I think the angle finders using fluid, floats, gravity and a level surface are not as accurate? No?
Of course, I'm not measuring any sloping tube compact designs or Rivendell products...
Chuck Schmidt South Pasadena, Southern California
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