New article about the SRAM i-Motion 9 internal-gear hub — the only public source of information on how to rebuild this hub, and with links to installation information and (hard to find!) parts lists from SRAM.
Rollerbrakes article expanded
Major additions to the article on Shimano Rollerbrakes — advanced instruction on maintenance, more advice about when these brakes are most suitable.
New Shimano internal-gear hubs
Shimano has some new internal-gear hubs. We’ve updated the Shimano 3-speed page, and the internal-gear hubs page.
Article about Rohloff hub
We have spiffed up an article about the Rohloff 14-speed internal-gear hub which had been lurking on the Harris Cyclery part of the site and placed it with the other informational articles.
About torque
John has written a new article about torque, as it applies to threaded parts, braking and drivetrains.
Five-Speed Hub Gears
Article about 4- and 5-speed Sturmey-Archer hubs kindly shared by John Forester and now on sheldonbrown.com. This dips into the history of the hubs and suggests several useful modifications also applicable to other hubs.
Sturmey-Archer anti-rotation washers
Major addition to our article with general technical information about Sturmey-Archer internal-gear hubs — the different types of anti-rotation washers. It matters which ones you use!
Updates to Sturmey-Archer 4, 5 and 7-speed hub page
Major updates to the page on Sturmey-Archer 4, 5 and 7-speed hubs, mostly concerning the hubs sold from 1991 through 2009.
Emergency frame repairs
Headed out on tour where you could be 100 miles or more from the nearest bicycle shop? Or do you just want to know the principles of bicycle frame alignment? We have an article for you.
More troubleshooting advice on Sachs/SRAM internal-gear hubs
There’s more troubleshooting advice now in our article about Sachs/SRAM internal-gear hubs: how to test whether a problem is inside the hub, or only in the shifter and cable — for hubs with 3, 5 or 7 speeds, with pullchain(s) or clickbox.
