Major update to Shimano 8-speed hub page

Our page about Shimano 8-speed hubs now includes information on the new hub models. The table listing hubs has a new column indicating which cassette joint or motor unit works with each hub, and which hubs have interchangeable internal parts.

Shimano Alfine 8-speed hub

Shimano Alfine 8-speed hub

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Why did this crash happen?

New page — why did this crash happen?

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Gear Calculator now supports 12-sprocket cassettes

Update to our gear calculator. It now supports custom 12-sprocket cassettes, and has a listing for the stock SRAM 12-sprocket cassette. Not that we really think that thin sprockets, with a flimsy chain, are a good idea!

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More tire sizes

We’re added some bicycle tire sizes (mostly, rare Dutch sizes) to the ISO cross-reference list in our tire-sizing article. We think we have all currently available sizes covered, but if you know of others, please let us know.

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Updated information on drivetrain compatibility

Our article about cassettes has been updated to include information on 11-speed systems. Interesting — all major brands of 11-speed casettes now have the same sprocket spacing. Most rear derailers and shifters are not compatible, though. We can tell you which ones are.

Shimano cassette Freehub

Shimano cassette Freehub

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Chain and sprocket wear

New post on bicycle chain and sprocket wear

How a bicycle chain engages a sprocket with tall teeth

How a bicycle chain engages a sprocket with tall teeth

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More info on SRAM internal-gear hubs

More information on the SRAM S7 internal-gear hub — a reader has sent us links to step-by-step rebuilding information and model comparisons, with photos. The text is in Russian but the photos tell the story and then there’s Google Translate. We’ve also checked an updated all the links on the page.

S7 hub internals

S7 hub internals

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Sheldon’s journal dusted off

Sheldon Brown self-portrait, January 9, 2007

Sheldon Brown self-portrait, January 9, 2007

Sheldon Brown kept an online journal for several years. He coded it himself in html rather than using blog software. Sheldon reviewed books, movies, concerts and TV programs, as well as describing his travels and other interests including, of course, bicycles and bicycling. Harriet is in the process of dusting off the journal, reformatting it for easier reading, repairing broken links, etc.

Pages which have been redone as of now are those from January and February 2006 through January – February 3, 2008

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Exposing and reinstalling the inner tube without removing the wheel

How to expose the inner tube for patching without removing the wheel, and how to put things back together — very useful on a bicycle where removing the wheel is difficult.  This article includes videos showing how to do it step by step.

tire from the rim in preparation for removing the inner tube

Freeing one side of the tire from the rim in preparation for removing the inner tube

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Cyclecomputer database updated

We looked high and low to add to our listing of cyclecomputer and bicycle-GPS owner’s manuals. It’s the most complete one you’ll find. We’ve been downloading manuals too so we can still make them available when they are deleted from manufacturer’s Web sites (hello, Vetta…).

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