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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 700 gets 2018 makeover

Catrike updates the 700 speed-trike for 2018, improving performance and addressing owner-feedback.

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HP Gekko FX26 folding recumbent trikes become scarce in USA
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

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How to get out of a recumbent trike if you can't get out of a recumbent trike
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.

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Electric-assist torque anchors
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.

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