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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.
The Ataxian arrives

Come out to Davis on Saturday, May 30, 2015 for the Ride Ataxia NorCal ride.

Join Kyle, Izzy, and a whole bunch of amazing people in the FARA Norcal Ride.

All the details right here on the official FARA Norcal website.

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Almost illegal...

It should be almost illegal for old people to ride road bikes. They should ride these... --JCS

[Editor's note: Notice the shifter / brake setup on that 700.]

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Azub recumbent technology

Azub manufactures touring recumbents in the Czech Republic.

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ICE Running Improvements / 2014-2015 model-year changes

One of the sillier things we've inherited from the auto industry is the concept of "model-years". The "model-year" is a fabrication arbitrarily used by the auto-makers to make their own products prematurely obsolete.

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