Bicycle generators

Posted on April 28, 2018 by John

Shimano Alfine hub generator

Shimano Alfine hub generator

Generators for bicycle lighting — new article by guest author Frank Krygowski. Advantages and disadvantages compared with batteries; types, history, installation.
Busch & Müller Dymotec tire-sidewall generator

Busch & Müller Dymotec tire-sidewall generator

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A brief history of bicycle lighting

Posted on April 25, 2018 by John

Updated and expanded: a brief history of bicycle lighting, from candle lamps to LEDs.

Kerosene bicycle lamp from around 1895

Kerosene bicycle lamp from around 1895

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Updates to chainline and frame-spacing pages.

Posted on April 12, 2018 by John

As of 2018, fatbikes and disk brakes have led to several new axle-length standards. The problem of disk brakes’ pulling the hub out of the front dropouts  has been addressed with thru axles, which insert into a fork with a hole rather than a slot at the end of each blade. Our chainline page and cribsheet as well as our frame spacing page and cribsheet  are now updated to cover these developments.

Chainline diagram

Chainline diagram

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ShelBroCo Power Powder

Posted on March 31, 2018 by John
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

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Sheldon’s bicycle pages

Posted on February 16, 2018 by John

Harriet has neatly reformatted Sheldon’s bicycle page. Read all about ’em. I find the page about his Greenspeed recumbent especially interesting. Who but Sheldon would be extolling the advantages of a low-rider tadpole recumbent tricycle for off-road riding?

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Gear Calculator updated!

Posted on February 12, 2018 by John

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.

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Video interview!

Posted on February 5, 2018 by John

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.

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Sheldon Brown memorial service

Posted on February 3, 2018 by John

For the 10th anniversary of Sheldon’s death, we are posting video of his mamorial service. You may it view it here or click to view it on YouTube.

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Video of aluminum bicycle frame presentation

Posted on January 1, 2018 by John

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.

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MIT aluminum bicycle project, 1974

Posted on December 25, 2017 by John
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

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