Aluminium Crusader :-)
Join Date: Apr 2004
Location: Melbourne, Australia
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I don't know the maths, but when I'm comparing bikes, I measure reach from the middle of the handle bars to either the tip of the seat or a spot on the seat post. It's obviously not like using a theodolite. but I get a good idea.
When comparing bar height form bike to bike, I get a rough straight line from the top of the bars to the middle of the fork steerer, then measure this point to the bottom of the steerer. This way you don't have to subtract head-tube length, head-set stack height, spacers and stem height.
Last edited by 531Aussie; 02-21-05 at 12:24 PM.