Gear Ratios

bluedog99

Hi, could any body tell me where i can do a gear ratio comparison between a 53/39 - 12/28 and a compact 50/34 - 12/26. Thanks for any advice or information. Cheers.

Sprool

this is quite useful:
http://www.bikecalc.com/gear_ratios
http://www.bikeschool.com/tools/gear-calculator

bluedog99

Sprool wrote:

this is quite useful:
http://www.bikecalc.com/gear_ratios
http://www.bikeschool.com/tools/gear-calculator

Wow! thats brilliant, thanks so much.

Sprool

very welcome

bikergirl17

this one is good too, as can also adjust for wheel size and shows by cassette ratios.

http://sheldonbrown.com/gears/

ugo.santalucia

I might sound old fashioned, but if you divide the number of teeth of your chainset by the number of teeth of the sprocket, you get your gear ratio, which is the number of revs a wheel does per pedal rev...
Numbers under 1.4 are granny gears, numbers above 3.5 are big gears

All you need is a pocket calculator really