ShelBroCo Power Powder

Shelbroco Power Powder packets
ShelBroCo Power Powder packets

Boost your energy for early-season training with ShelBroCo Power Powder.

Well, OK, if you are down under, it works for late-season training too.

Just pour ShelBroCo Power Powder into your water bottle, add water, shake, then go!

We have special  prices for Sunday of  Easter and Passover. Hurry, don’t miss this special holiday offer!

Don’t delay. Supplies are limited!

ShelBroCo Power Powder in bulk
ShelBroCo Power Powder in bulk

Gear Calculator updated!

Our gear calculator is now updated to cover the newest cassettes from Shimano, SRAM and SunRace. — Still to update: the French- and German-language versions.

Video interview!

Melanie Morris from Somerville (Massachusetts, USA) Community Television will interview Harriet Fell and John Allen about Sheldon Brown — and it will be available over the Internet. Go to https://www.somervillemedia.org at 7 PM EST Monday February 5 (00:00 Tuesday February 6, UTC). The show will be rebroadcast at 9:30 PM EST Tuesday February 6 (02:30 February 7, UTC) and will later be archived for on-demand viewing.

Video of aluminum bicycle frame presentation

Now, a video to go with Harriet Fell’s article recently published on sheldonbrown.com: her presentation on the MIT aluminum bicycle frame project at the 2016 International Cycle History Conference.

MIT aluminum bicycle project, 1974

Marc Rosenbaum's 12 1/2-pound aluminum track bike, 1974
Marc Rosenbaum’s 12 1/2-pound aluminum track bike, 1974
Harriet Fell rides her aluminum bicycle, 2005
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!

Bottom bracket of Harriet's bicycle
Bottom bracket of Harriet’s bicycle

Update to Shimano 7-speed hub gear page

 

Shimano Nexus 7-speed internal-gear hub with Rollerbrake
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.

Sturmey-Archer 4, 5 and 7-speed hubs

We have updated our article about Sturmey-Archer 4, 5 and 7-speed internal-gear hubs to reflect changes in hub availability and new documentation.

Sturmey-Archer S%W hub
Sturmey-Archer S5W hub

Shimano 4-speed IG Hub Page Updated

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

Shimano Nexus 4-speed coaster-brake hub
Shimano Nexus 4-speed coaster-brake hub

Shimano 8-speed IG hub update

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.

Shimano Alfine 8-speed hub
Shimano Alfine 8-speed hub

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