Tag Archives: bottom bracket

Unthreaded bottom-bracket update

Major update to the unthreaded bottom bracket cribsheet: several additional ones covered, broken links repaired. yes, everything from Ashtabula one-piece crank BBs (as shown in the photo) to the Klein Team Super to eccentrics for tandems.

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Customizing a fatbike

Bruce Ingle customizes a fatbike — Fatbikes are intended for use on soft, muddy, sandy, snowy surfaces but they need customization to make them truly practical for such use — in particular, fenders, wide-range gearing including ultra-low gears, and a … Continue reading

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Bicycle frame fatigue-resistance testing

The groundbreaking article about fatigue-resistance testing of bicycle frames — the results surprised even the people doing the test — now in a much-improved new translation from the original German.

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Chirridos, Crujidos y Chasquidos…Creaks, Clicks & Clunks

Ahora también en español: Chirridos, Crujidos y Chasquidos… ¿Tu bici hace ruidos extraños cuando montas? ¡Este artículo intentará ayudarte a hacer que se calle! Traduccción de Pablo Zumárraga. And also revised in English: Creaks, Clicks & Clunks… Does your bike … Continue reading

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Raleigh Twenty page additions

Additions to the page on Raleigh Twenty bicycles — more detail on bottom-bracket replacements, headsets, brakes, handlebars. This page gives specific ideas about customizing the Twenty, and highlights Sheldon’s do-it-yourself approach in general, taking advantage of the strong points (in … Continue reading

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Bottom bracket information revised

We’ve added David Richardson’s photo of damage to a Shimano Octalink V1 crank from installing it on a V2 spindle to the bottom-bracket database. Also, we’ve coordinated bottom-bracket threading standards tables in the several files where they appear.

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Unthreaded bottom bracket dimensions

New cribsheet page with dimensions of unthreaded bottom brackets, and compatibility information.

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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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Another in Italian

Salvatore Celi has also translated Sheldon’s article on Shimano Dura-Ace components into Italian, http://avvsavv.blogspot.it/2013/07/sheldon-brown-shimano-dura-ace.html

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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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