Author Archives: John

Jobst Brandt pages updated

Harriet has reorganized the Jobst Brandt pages — formatting for easier reading, placing them into categories and in sequence, fixed broken links. Brandt’s trenchant comments demolish a number of bicycling myths, and bring an engineering perspective to issues of mechanical … Continue reading

Posted in Updates | 2 Comments

Home-brew hybrid gearing

Additions to the article on internal-gear hubs — more about how to construct a multi-speed hybrid-gearing system using a stock 3-speed hub and two sprockets and/or two chainwheels. It indexes even without index shifters! Photo courtesy of Mark Stonich.

Posted in Updates | Leave a comment

Skid patch counts

Correction to formula and additional info including a calculation spreadsheet for the number of skid patches on the rear tire from skip-stop braking on a fixed-gear bicycle.

Posted in Updates | Leave a comment

SRAM G8 Hub

New article about the SRAM G8 8-speed internal hub gear – all you need to know to install this hub: specifications, gear ratios,  parts compatibility and availability, how the mechanism works.  As far as we know, this is the one … Continue reading

Posted in Updates | Leave a comment

Unthreaded bottom bracket dimensions

New cribsheet page with dimensions of unthreaded bottom brackets, and compatibility information.

Posted in Updates | Leave a comment

Kryptonite history

Just posted — an article on the invention and early history of the Kryptonite bicycle lock — including numerous illustrations, and interviews with Stan Kaplan, the inventor, and Michael Zane, who commercialized the product.

Posted in Updates | 1 Comment

ShelBroCo Dent Removal System

A prized, classic steel bicycle frame with butted tubing (thick-walled at the ends for strength, thin-walled in the middle for light weight)  is easily dented, but ShelBroCo has a fix — it’s quick, effective and easy to use! http://sheldonbrown.com/dent-removal.html

Posted in Updates | Leave a comment

Leather saddle update

Major additions to our page on leather saddles — descriptions and photos of different Brooks saddle models, comments on other brands, lots more advice on adjustments and leather care.

Posted in Updates | Leave a comment

8-speed Shimano hubs — update

We have updated our page on Shimano 8-speed hubs. Shimano changed a number of links and posted some new information.

Posted in Updates | Leave a comment

How the i-Motion 9 hub works

New section on how the SRAM i-Motion 9 hub works in the article about that hub.

Posted in Updates | Leave a comment