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19-07.-2003, 04:03 AM
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#1 |
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Junior Member
Join Date: Jul 2003
Posts: 3
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Racing bike geometry history question
My question is about the history of road racing geometry. I'm curious about how "slack" or "extreme" racing geometries have been over different eras.
Does anyone know what seat angles, head angles, chainstay lengths, bb drops, fork rakes, and wheelbases would have appeared on european road racing bikes from, say, the 30's up to today? What were the trends? Also, I'm curious about frame/fork weights from different eras. Is it true, for example, that a Tour de France roadracer's bike in 1950 would have relaxed geometry and weight of a touring bike today, or were they more extreme than that? How about the '60's? '70's? Do "typical" geometries even exist for any time period? Are there any resources for this type of question? Thanks, Jim Rogers |
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19-07.-2003, 09:09 AM
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#2 |
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Registered User
Join Date: Jun 2003
Location: Springfield MA
Posts: 280
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While I think that seat tube angle is crucial, don't you think the rest is dictated (mainly) by seat height and stem length/angle?
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22-07.-2003, 04:13 AM
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#3 | |
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Junior Member
Join Date: Jul 2003
Posts: 3
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Quote:
Well, I guess that's true for rider position, but I'm talking about the geometry of the bike itself. Questions like, what was the bottom bracket drop on Coppi's bike when he won the Tour? What kind of chainstay length did Merckx have in 1969? How much fork rake did Alfredo Binda have in the old days compared to Super-Mario today? Questions of that nature is what I'm researching. Jim |
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