The Human-Powered Home

The Human-Powered Home

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A complete guide to modern pedal-powered, treadled, and hand-cranked devices for the home.For example, a ten-speed bike might have two chainrings and five cogs, giving you ten possible gear combinations. To shift from one chainring to another, you press a lever or turn a knob on the handlebar which activates the front derailleur, which moves the ... Bicycle chains come in widths of 3a„32aquot; (the most common type , found on road bikes and ten-speeds) or1a„8aquot; (found on fixed-gear or track bikes).

Title:The Human-Powered Home
Author:Tamara Dean
Publisher:New Society Publishers - 2013-10-18


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