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Gearing, overlap, and efficiencies(6 posts)

Gearing, overlap, and efficienciesBosephus
Aug 1, 2001 10:10 AM
Lately I've been noticing that my large and small chainring have an aweful lot of overlapping gear combinations. I was wondering what most of you are using out there? Currently I'm using a 42/52 crankset and a 12-24 cassette. I've been thinking about maybe getting a 39 tooth ring instead of the 42 or even a 39 ring and a 53 ring to replace both chainrings, but I wanted to see what most people were using out there.

thoughts?
re: Gearing, overlap, and efficienciesLone Gunman
Aug 1, 2001 10:17 AM
From glancing at the newer cranksets these days, 39/53 seems to be the standard double and 30/42/52 is the triple. Cassettes are where the rider and terrain preference come into play.
re: Gearing, overlap, and efficienciesLen J
Aug 1, 2001 10:25 AM
Try the link below for 9 speed gear charts. Make sure you ask for the tables at the bottom, they give you both gearinches and speeds at various cadence. You can select different cogs also.

www.bsn.com/Cycling/gears.html
Anything for 10 speed?Bosephus
Aug 1, 2001 10:27 AM
I'm a campy guy ... chorus 10 speed
Anything for 10 speed?Cliff Oates
Aug 1, 2001 10:41 AM
Try the gear calculator at Sheldon Brown's web site: http://www.sheldonbrown.com/gears/
Try thisLen J
Aug 1, 2001 10:42 AM
www.sheldonbrown.com/gears/