Zinn's first integrated-spindle custom-length cranks

TECHNICAL GUIDE

Zinn's first integrated-spindle custom-length cranks

1 min read
Feb 12, 2008
Lennard Zinn

Zinn's first integrated-spindle ("Zinn-tegrated", or ZIS) custom-length cranks are made (CNC-machined)

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Written by Lennard Zinn
As a frame builder, Lennard Zinn has been designing and building custom bicycles for over 42 years; he founded Zinn Cycles in 1982 and co-founded Clydesdale Bicycles in 2017. His Tech Q&A column on Substack follows his 35-year stint as a technical writer for VeloNews (from 1987 through 2022). He is a former U.S. National Cycling Team member and author of many bicycle books including Zinn and the Art of Mountain Bike Maintenance, Zinn and the Art of Road Bike Maintenance, and The Haywire Heart. He holds a bachelor’s degree in physics from Colorado College.