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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.
ICE Full Fat Hunting Trike w. Rohloff
Sideview of ICE Full Fat recumbent trike with Rohloff Speedhub drivetrain

This ICE Full Fat off-road recumbent trike with Rohloff 14-speed Speedhub and full packing rack system and will be used for exploring and hunting off-road in the Sierras.

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Folding and unfolding a Catrike Dumont

A short video of folding and unfolding a recumbent trike (Catrike Dumont)

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Recumbent trikes, aging, and the immune system
JCS on his Catrike 700

Researchers in Britain studying elderly endurance cyclists have discovered profound benefits to cycling at an older age.

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Flags of 2018
mid-light exposure of 2018 flags

Major recumbent trike manufacturers revise their standard OEM recumbent trike flags with safety prioritizing over self promotion.

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