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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: -
© 2003-2019 Hugh Kern, All rights reserved.

Dear Hugh,
Please don't feel that you need to respond to this note.
I know that my check reached you yesterday and I just wanted to give you a big thank you. I have rarely run into someone whose customer service skills can match up to yours.

I don't know if I will write a testimonial or not, but, if I do, it will be a good one.

I'm impressed with how this Catrike Expedition has held up. --JJ (13,000 miles)

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

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