In a message dated 1/28/2007 11:01:47 AM Eastern Standard Time, freesound@comcast.net writes: I think most of us grayheads and near-greyheads can give an at least rough outline of how and when spacing progressed from 120 mm to 130 mm for road bikes. I think the more obscure phase, at least for me, is how it got from 105 to 120. I've pretty well got it down for 120 to 130 for the rear. The 105 to 120 rear and 95 to 100 on the fork are what have me reaching for a reference that I don't have. Lou Deeter, Orlando FL