What's new at sheldonbrown.com
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.
Revisions to the Shimano Rollerbrake page: links to Shimano’s (finally) well-organized compilation of Rollerbrake documentation; information on installing front Rollerbrakes.
We have a new article on how to perform the precise measurements needed to determine whether bicycle parts fit each other, without expensive and fragile tools. There are a number of clever tricks — for example, you can test the width of the square taper of a cotterless crank with an ordinary open-end wrench!
Thanks to Pablo Zumárraga, the article on “Cone Adjustment” (http://sheldonbrown.com/cone-adjustment.html) is now available in Spanish: “Ajuste de Conos” (http://sheldonbrown.com/spanish/cone-adjustment-Spanish.html).
Gracias á Pablo Zumárraga, el artículo “Cone Adjustment” (http://sheldonbrown.com/cone-adjustment.html) ahora está disponible en español: “Ajuste de Conos” (http://sheldonbrown.com/spanish/cone-adjustment-Spanish.html).
New article, derailerless drivetrains
: How to choose frame and rear hub for a happy combination on a bicycle without derailers: a fixed gear, singlespeed, internal-gear hub, coaster brake bicycle — and how to adjust the chain tension. This article compiles information from the articles on fixed-gear and singlespeed bicycles. but adds to it and puts it in one place. Most issues with all derailerless drivetrains are the same, but there are important differences to note, there is new equipment to cover, and there are additional techniques to describe.
New article: Osman Isvan demonstrates how to remove and replace quick-release bicycle wheels, with two videos. Here’s one of the videos:
I’ve responded to a request from a reader for more information about quick-release skewer lengths by going further, with a major expansion of the article about quick releases. The article now covers wheel installation, secondary retention devices including the much-derided “lawyer lips”, and much more. — http://sheldonbrown.com/skewers.html — John Allen, for sheldonbrown.com
New cribsheet page with dimensions of unthreaded bottom brackets, and compatibility information.
John has compiled an article with dimensions of most kinds of Sturmey-Archer indicator spindle — the little rod and chain which the shifter cable pulls to shift the gears inside the hub. There are over a dozen different indicator spindles, with different lengths, intended for different hubs — but importantly, there is a lot of compatibilty among them.
Major additions to the article on Shimano Rollerbrakes — advanced instruction on maintenance, more advice about when these brakes are most suitable.
