Speed Range

RPM Range from to RPM     mph kph     Grid     Sort

Semi-Log

Inches

Rollout

Inches Meters

Gain

Gain Ratio Chart

Speed

RPM     mph kph

All-in-One

Speed Range
RPM Range from to RPM     mph kph     Grid     Sort
Log Chart
Rollout
Inches Meters
Gain Ratio

ASCII

Rollout Table     Inches Meters

Speed at RPM     mph kph

Sheldon Brown's Gain Ratio Chart

About

Mike Sherman's Bicycle Gear Calculator

Revision 6.06

Note: if you display isn't wide enough, there could be problems displaying the and & rings input tabs, and with selecting display tabs.

Comments, suggestions, and bugs to: Mike Sherman at wheelwrightmike@gmail.com. Please let me know what browser you are using.

I've reformatted the calculator to allow the user to see whichever representation of the gears they desire. This should allow the calculator to be more useful on mobile devices. This new revision includes many requested changes. Please send me your comments.

I've been sitting on updates many users have requested for a couple of years because of lack of time and/or energy to update the pages on eht Earthlink servers where they reside. Adding to that, I've been looking for a new home for my calculator, as I don't find the rest of my webpages useful anymore.

I still hope to move the calculator to another server in the future. I will notify those that have communicated with me about the calculator about any new home it may find.

Here's some more about the program and its history.

index.HTML
Browser =