*********** Don, Of course a properly designed vertical or semivertical dropout takes the guesswork out of all this, as they yield only one wheel position, Amen!, but say, on a frame with 8cm drop and 42 cm chianstay length, where should the favored axle center be on a Campy 1010B dropout ? Starck, Joe P.S. I assume we're all measuring chainstay length, side view, parallel to the ground, not, parallel to the chainstay, hence, your favored 6-9mm distance would be measured the same way forward of the derailer hanger eye, eh -- or not? ********** Joe - When I talk about chainstay length to customers or regular bike folk, I'm talking about a straight line measurement from BB center to axle center (parallel). But when figuring chainstay length for rider balance on the bike or axle placement relative to the hanger eye, I'm talking about a true horizontal measurement, i.e., parallel to the ground. So yeah, the 6-9 would be a horizontal measurement, not a parallel one.
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