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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.
New Catrike Folding Trike hits the Trail

The new Catrike model (Trail) announced last year at Interbike is finally in production.

After a seemingly endless wait, dealers will have Trails in stock across the country within a week.

My new 700 really smokes! --DM

John Jackson has finished his trip on his Catrike Expedition in Centralia, Illinois.

He started in Sacramento on March 7. We had a lot of fun wrapping up loose ends with him.

Check John's blog.

Once again, we had the opportunity to turn out in support of Kyle Bryant and his band of amazing people.

350 riders rode whichever ride worked best for them: 60, 40, 10, 5, or 1 to raise funds for research to cure FA.

An incredible $110,000 was raised as well as the hopes of all.

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