Author Archives: John
John has posted an article on how to synchronize video shot at the same time with more than one camera, and another on image stabilization. These are meaty technical articles.
John has written an article about helmets and helmet issues. It includes a blast from the past, John’s photo of Sheldon in 1978 wearing a pre-Igor the Eagle helmet, and photos documenting changes in helmet design since the 1970s.
Shimano’s service instructions for the Nexus 7-speed internal-gear hub assume that you will replace the entire axle unit. Taking disassembly past the point where instructions are available is all too easy. You might also want to cannibalize parts to assemble … Continue reading
John has posted his article on internal-gear hub theory, history and some practical advice. This article describes the internal workings of all the newest hubs including those with compound and multi-stage gearing.
John has added a photo of a frayed cable to the article on cables.
John added photos of a frame pump, mini pump and CO2 inflator to flats.html.
chains.html — substantial revisions. tandem.html, tandem2.html — minor revisions.
John Allen has done some revisions to the articles on tires/tyres and added more information on GPS to the article on cyclecomputer calibration.
John has done a major update and expansion of Sheldon’s article on Sun Tour components.
John has added information on yet another way to remove a stuck seatpost — dissolving it using a strong chemical.…