Tag Archives: crank

Extensive revision of chainwheel bolt-circle information

A few months ago, a reader prompted us to make some updates to our chainwheel bolt circle cribsheet. But now we have followed up on that effort, greatly expanding our coverage, and we have added a set of templates which … Continue reading

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Update to Bolt Circle Diameter Cribsheet

We have reviewed the bolt circle diameter cribsheet, checked bolt-hole spacings using trigonometry and made some corrections. Apparently, the spacings were measured rather than calculated based on angles — and measurement is never exact! We have also added entries for … Continue reading

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Additions to cranks page

John has added quite a bit of text to the cranks page; more about crank length, and an entirely new section on how to check for several kinds of damage; also several illustrations where there were none before.

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About torque

John has written a new article about torque, as it applies to threaded parts, braking and drivetrains.

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Bottom-bracket spindle tapers

Photos and text have been added giving examples of different tapers, and combinations of spindle and crank that are compatible, or not. It’s here.

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Major update to cotterless crank article

John has expanded and updated the article on cotterless cranks.

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