Marc Rosenbaum’s 12 1/2-pound aluminum track bike, 1974
Harriet Fell rides her aluminum bicycle, 2005
New post: the MIT aluminum bicycle project, 1974, where modern aluminum bicycle frames got their start as student Marc Rosenbaum’s thesis project. sheldonbrown.com site owner Harriet Fell built one of the original MIT aluminum bicycle frames, it came to be an exhibit in a Klein vs. Cannondale lawsuit — and she still rides it!
Shimano Nexus 7-speed internal-gear hub with Rollerbrake
Our Shimano 7-speed hub page is now updated to fix the links which broke when Shimano redid its Web site. We have also added information about new models, and made a few improvements in the text. All of our pages about Shimano internal-gear hubs are now up to date.
Shimano Nexus 4-speed page updated — in our continuing quest to keep up to date with Shimano’s ever-changing Web site, we’ve updated the links and related information on Shimano Nexus 4-speed internal-gear hubs
Sheldonbrown.com provides a forwarding page whenever we consolidate or move material. Not so Shimano, which broke all our links to its technical information. Sigh. We have just repaired our page on Shimano 8-speed internal-gear hubs.
We’re done updating the cyclecomputer and GPS database — this is the Internet’s most complete listing — except that it never is complete, as new models appear and old manuals are unearthed. Please feel free to send in information!
Our cyclecomputer and GPS database is undergoing a major review. We’re not all done yet but we have fixed a number of bad links where manufacturers dropped support — thanks to the Internet Archive and our backup copies. And then there are the new models…many of them. We thought that cyclecomputers were passé, what with the advent of GPS, but this is still a strong product category. We found a number of new brand names as well.