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11 April 2014 - 10:13am

Gearing Calculator


Handy gearing calculator makes optimal gearing easy.

This calculator tells gear-inches calculations for:

  • conventional derailleur-based systems
  • SRAM 3x7 and Dual-Drive systems
  • Rohloff Speedhub
  • Schlumpf Speed-Drive, Mountain-Drive, and Highspeed-Drive
  • Shimano Nexus
  • Sturmey-Archer

and combinations thereof -- as well as normalizing the numbers relative to cranklength.

Click here to check it out.


Face-time with ICE. Ask all of your questions. Find out what happens behind the scenes. And, try trikes, trikes, trikes... including the fully automatic ICE Adventure electric trikes.

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New Bacchetta B3 seat strikes middle ground between Recurve and Euromesh seat-styles.

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