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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.
AlphaBENT offers the German-made Neodrive Z20S torque-based hub-motor electric-assist upgrade kit for Catrikes -- even those with 142mm through-axles. This elegant e-kit upgrades non-motorized Catrike recumbent trikes with a smooth, powerful motor built into the rear wheel. The intuitive system ihas a simple, comprehensive control / display that mounts efficiently onto a shifter.

A fire in the early morning of 5 June 2024 destroyed our neighbor business, MidCentury Sacramento. AlphaBENT escaped the worst of it and is back up and running.

Catrike introduces a new trike with a wider stance and higher seat and weight limit.

Catrike has discontinued the venerable Road recumbent trike model.

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