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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 500/14Cog: -
~=170mm: -
7-8sp InternalCog: SRAM S7: -
Shimano Nexus-7: -
Shimano Nexus Inter-8: -
Shimano Alfine-11: -
Nuvinci N360: -
Sturmey: -
Single-speed: -
© 2003-2017 Hugh Kern, All rights reserved.
Overlay picture of folding action of a Gekko FX-26 recumbent tricycle

US supply of Gekko FX26 folding recumbent trikes runs low. Remaining Gekkos are in short supply in the USA, but some still exist at premium stocking HP Velotechnik dealers like AlphaBENT

A technique for getting out of a recumbent trike if your body doesn't fully respond to your wishes

Miles shows how to get out of an extremely low laidback recumbent trike with limited strength, coordination, or balance.

Splined torque arm installed on GoSwiss 500W recumbent trike electric-assist pedelec

An explanation of torque-arms, torque-collars, and why we need them with pedal-assist electric motor systems.

Bionx 350W electric-assist on Bacchetta A26 / Giro ATT-26

Bacchetta A26 (Giro ATT-26) recumbent bike gets even faster with 350W Bionx electric motor.

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