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Old 06-18-17 | 11:44 AM
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79pmooney
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From: Portland, OR

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

You are interested in the reach. It looks pretty clear from your table that with the same stem bike 2 has around an inch (2 1/2 cm) more reach with the saddle in the same place relative to the bottom bracket. (But as a poster above noted, I am guessing you swapped the Bike 1 and Bike 2 seat tube angles. Larger bikes almost always have less steep seat tubes, pulling the top tube back and with it the head tube. The crude "rule" is that 1 degree difference in seat tube angle moves the top tube 1 cm horizontally. (For a 57 cm, is 23 1/2", bike the 'rule" is almost exact.)

An inch difference in handlebar position is a lot. These bikes will ride quite differently even if the rest of the numbers are identical. (I haven't gone through the whole table. On my screen it isn't readable and isn't a lot better when pasted into Paint and expanded.)

Ben
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