April 2018 – SheldonBrownBlog

Bicycle generators

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

A brief history of bicycle lighting

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

Updates to chainline and frame-spacing pages.

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.