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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.


[Updated 6/21/20] Beginning Wednesday, 24 June 2020, after three months of suspension of normal business hours, we will resume regular business hours. Customers will be restricted to enforce strict social distancing and priority will be given to honor appointments.

Catrike has discontinued the venerable Road recumbent trike model.

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.

An inexpensive hitch-mount rack for folded recumbent trikes. For example, the ICE Full Fat big-tired adventure tricycle.

Azub trikes are adventure ready

Azub will be at AlphaBENT on Wednesday, October 23 to show the latest Czech recumbent technology. Come to for test-rides, and bent-talk.

Catrike has made wider hubs with through-axles standard equipment on all large-wheel models. This change affects the following recumbent trike models: Expedition, 559, Dumont, and 700. The change promotes laterally stronger wheels and prevents movement within the dropouts under load at the expense of compatibility with equipment such as electric hub moters that are designed to the older 135mm dropout widths.

Catrike Eola lead banner image

Catrike announces the Eola, a new recumbent trike model for 2019.

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