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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 11-29-08, 06:14 AM   #1
Exit.
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Someone explain GI to me.

How is it calculated, and what does it mean?
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Old 11-29-08, 06:17 AM   #2
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Maybe this will help.
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Old 11-29-08, 06:27 AM   #3
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Oh, I get it now.

More gear inches=stiffer gear. Hence the constant penis size comparison jokes. Coolbeans, thanks for the link.

In the context of fixed-gear, what is a reasonable GI for a reasonably in-shape person (but one who has been riding with gears and has never ridden FG.)?
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Old 11-29-08, 06:34 AM   #4
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try something in the 70" range.

http://www.fixedwheel.co.uk/tech.htm
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Old 11-29-08, 06:45 AM   #5
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So 42x16 or 44x17 would be good noob gears?
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Old 11-29-08, 07:15 AM   #6
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Yea, I was going to say anything from 60-80 depending on elevation changes.
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Old 11-29-08, 07:17 AM   #7
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If you have access to a geared bike, try it out there. 42x16/17 is pretty common.
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