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Recumbent gearing calculator


Wheel diameterWheel size:
Front chainring(s): Crank length:
Front transmissionNone:
Schlumpf DriveMountain-Drive:     Speed-Drive:     HighSpeed-Drive:
Pinion gearboxP1.12:     P1.18:
Efneo GTRO (3-speed):
Rear cassetteCassette:
-
Raw gear: -
~=170mm: -

SRAM 3x7 / Dual-Drive: -
~=170mm: -
14-sp Rohloff Speedhub 500/14 Cog: -
~=170mm: -
3x3 NINE Cog: -
~=170mm: -
7-8sp Internal Cog: SRAM S7: -
Shimano Nexus-7: -
Shimano Nexus Inter-8: -
Shimano Alfine-11: -
Nuvinci N360: -
Sturmey: -
Single-speed: -
© 2003-2024 Hugh Kern, All rights reserved.
Catrike 3D engineering drawing of the Dumont full-suspension recumbent tricycle

Catrike announces a delay on full production of the Dumont until October 1, 2016. Dumont full-suspension recumbent trike to incorporate next generation manufacturing technologies.

Ride Ataxia Team Sean

Kyle Bryant rallied the Ataxians and their supporters at the 7th Annual Ride Ataxia NorCal. Riders, families, and friends gathered in picturesque Winters, California for the 4 June 2016 event and raised a stunning amount of money for Friedrich's Ataxia research.

Friedrich's ataxia awareness

Come out and support the Kyle Bryant and The Ataxians for Ride Ataxia's SEVENTH annual fundraiser to raise money for research to cure Friedrich's Ataxia. This year, the ride begins and ends in Winters, CA (not Davis).

Front view of Catrike Dumont full-suspension trike showing front suspension

Front suspension non-interchangeability with other Catrike recumbent trike models, and update on Dumont full-suspension rollout timing.

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