Sheldon Brown's		Internal Gear Calculator

by Sheldon "Gain Ratio" Brown

Click here for the version for conventional gearing.

If you want more numbers, including speed and cadence data,
Jake Odell has a more elaborate gear calculator:

HPV Drivetrain Analyzer

Thanks to Stephen D. Cohen and Timothy Lipetz for programming help

Further information:

• Rohloff 14 speeds

• Sturmey Archer

• SRAM/Sachs Seven Speeds

• Shimano 4 and 7 speeds

• Hub Sales

Feedback? Questions?

Articles by Sheldon Brown and others
Harris Home	Beginners	Brakes	Commuting Lights	Cycle- Computers	Do-It- Yourself	Essays
Family Cycling	Fixed Gear Singlespeed	Frames	Gears & Drivetrain	Bicycle Humor	Bicycle Glossary	Bicycle Links
Old Bikes	Repair Tips	Tandems	Touring	What's New	Wheels	Sheldon Brown

Sheldon Brown's Personal Pages
Books	Boston	My Bicycles	My Family	La Belle France	Home Page	My Hotlists
Humor	My Journal	Misc.	My Music	My Photography	Québec	Radio

Copyright © 2001, 2008 Sheldon Brown

Back to Harris Cyclery Home Page