Category Archives: Updates

Update to our Rollerbrake page

New references, broken links fixed. https://sheldonbrown.com/rollerbrakes.html

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Major update on Shimano 8-speed IG hubs

New info on efficiency, updates to newer resources on Nexus and Alfine 8-speeds.

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The ShelBroCo Backup System

Electronic attitude and heading reference system with stability, ABS and traction control. Powered steering assembly. Once again, ShelBroCo is off the front with new technology. Read about it here!

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SunTour freewheel page covers more models

The SunTour freewheel page now covers Winner Pro, Winner and Alpha models in addition to Perfect, Pro Compe and New Winner.

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Rollercam and U-Brake Update!

For once, Sheldon Brown was wrong. Evidently, he never worked on a U brake! The procedure to adjust their return springs’ tension is unusual. Reader Peter Stock has provided the needed information, with photos. Check it out on our U-brake … Continue reading

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The site is now displaying normally.

The site is displaying correctly again. Somehow permissions got changed on include files, tables and images, not our doing. But our Web host has now corrected the problem. Enjoy!

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Bolt circle update

Revision to our bolt-circle diameter pages — several edits, and a new template for Wolf Tooth, Campagnolo and FSA chainrings with uneven bolt-hole spacing. Quickly identify chainrings and find their tooth count. https://sheldonbrown.com/templates-bcd.html

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Thru Axles

Thru axles have become common on high-end bicycles in recent years, replacing the classic quick release. We have a new post about thru axles — description, types, installation and care, advantages and disadvantages.

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Kickstands

We have a new article on kickstands — choices, issues, installation. Sheldon didn’t write about them, because he didn’t use them. But John has them on a  couple bicycles, and they can be convenient.  

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Another way to look at sprocket sequences

Plotting sprocket pairs and ratios as a two-dimensional graph makes it possible clearly to see which pairs have nearly the same ratio — and to identify good sequences. We have a graph and an article to describe it. />  

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