Tag Archives: chainwheel

Addition to bolt-circle coverage

Campagnolo has come up with another new chainring bolt pattern (why?) and we have added it to our coverage. It’s the most complete you’ll find anywhere. Print out the template that corresponds to the kind of bolt pattern of your … Continue reading

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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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Chain and sprocket wear

New post on bicycle chain and sprocket wear

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If the chain falls off or jams

New article on how to prevent chain incidents and how to recover from them. Did you know that you can re-engage a dropped chain without getting your hands dirty?

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