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Where can I find a gear+cadence=speed calculator on line..(4 posts)

Where can I find a gear+cadence=speed calculator on line..853
Oct 7, 2002 7:07 AM
I remember seeing one a while back - I think it was a spread sheet?
I just trying to figure out if I should change my gearing selection. Where I train there is lots of climbs that are very steep. Because of my 226.lbs I am always left pushing and grinding up climbs that my friends are spinning up using the same gear.(I use a 12-23)They tell me that getting a 12-27 will make me slower. I just want to find out if I will travel faster by spinning an easier gear.
Currently I see that I am stuck climbing at about 50 to 55 rpm's in a 23, If I where able to spin a 27 at 70-75rpm's will that be faster?
Thanks
here you goDougSloan
Oct 7, 2002 7:09 AM
http://www.midcalracing.com/gears.xls

You can save it to your hard drive, too.

Doug
And another...MXL02
Oct 7, 2002 7:22 AM
http://www.analyticcycling.com/GearCadenceSpeed_Page.html
wow, thanks853
Oct 7, 2002 7:51 AM
1.2 mph faster using a 27 at 75rpm's
I proabably won't catch up to my friends but I could save time going up the hills.
Does anybody know if I have to change the chain length. I would like to use a 12-23 for flatter rides and a 12-27 for hilly ones.

Thanks