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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: -
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Classifieds

PBW

Wheels - This is the ONLY workshop of the year on wheels. It is a bit on the technical side: to satisfy the need for more knowledge.

How to build a wheel; true a wheel; make it round; calculate spoke lengths; smooth out bumps inside your drum brake. When can't a wheel be saved? Why are good spokes important? How and why to dish a wheel. How to make or true an unconventional (single-sided) wheel. Replacing wheel bearings.

Come with a thirst to learn.

Caffeine and morning snacks provided. Workshop starts when the caffeine kicks in. Cost: FREE

PBW

Never fear going out again. Have confidence in your patch kit and your patching technique! Meet a goathead / puncture-vine and know your enemy. Morning snacks and caffeine provided. Workshop begins when the caffeine kicks in. Bring a flat tube to fix and tire conundrums and puzzles. Go for a ride on nearby American River Trail afterwards

PBW

Come out and learn about chains.

When to lube and how. Lube options. How to measure the wear on your chain. How to open quick-links (power links). How to use a chain tool.

We'll show you how to do all this and more concentrating on conventional multi-speed bike chains.

Caffeine and morning snacks provided. Bring a chain conundrum for our version of Stump the Chumps. Go for a ride on the beautiful American River Trail afterwards.

Where: 1114 C Street, Sac'to.
Cost: FREE

Come out and learn about adjusting your own shifting.

Enjoy beautiful, crisp shifting. Eliminate pesky trips to a bike shop to get rid of that clunking. Take charge of your handlebars. We'll show you how to do all this and more. Covering twist shifters, bar-ends, internally geared hubs, as needed.

Caffeine and morning snacks provided. Bring a shifting conundrum for our version of Stump the Chumps. Go for a ride on the beautiful American River Trail afterwards.

Where: 1114 C Street, Sac'to.
Cost: FREE

PBW

Explore the elements of a tricycle drivetrain from the pedals through the cranks, chain, rear cog or cassette, and into the wheel.

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Due to statewide movement restrictions and the continuing wave of the COVID-19 outbreak, normal business hours were suspended and we worked on an appointment-only basis to help you find the best recumbent trike for your needs. Strict mask and social distancing guidelines were observed and entry to the shop was limited to as-needed only.

Catrike has discontinued the venerable Road recumbent trike model.

Face-time with ICE. Ask all of your questions. Find out what happens behind the scenes. And, try trikes, trikes, trikes... including the fully automatic ICE Adventure electric trikes.

An inexpensive hitch-mount rack for folded recumbent trikes. For example, the ICE Full Fat big-tired adventure tricycle.

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