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Tag Archives: repair
Upgrading old road bikes
I’ve filled out and Harriet has formatted Sheldon’s page about upgrading old road bikes, which Sheldon left as a work in progress.
Posted in Updates
Tagged bicycle, bottom bracket, cassette, chain, cranks, crankset, derailer, derailleur, frame spacing, gearing, gears, hub, internal, internal-gear, maintenance, repair, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, upgrading
12 Comments
Sachs Elan/SRAM E12 Internals
John has posted a new article about the mechanism of the Sachs Elan/SRAM E12 12-speed internal-gear hub; the largest, heaviest, most complicated internal-gear hub ever marketed — flawed execution of a brilliant design concept. The unusual way this hub establishes … Continue reading
Posted in Updates
Tagged 12-speed, bicycle, Elan, gearing, gears, hub, internal, internal-gear, maintenance, repair, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, SRAM
Comments Off on Sachs Elan/SRAM E12 Internals
Shimano Internal-Gear Hubs
John has made major updates to the pages on Shimano Nexus and Alfine internal-gear hubs — 3-speed, 7-speed and 8-speed; also a page with general mechanical information.
Posted in Updates
Tagged 11-speed, 3-speed, 4-speed, 7-speed, 8-speed, Alfine, anti-rotation, antirotation, cassette jopint, hub, internal, internal-gear, maintenance, Nexus, repair, shimano
Comments Off on Shimano Internal-Gear Hubs
Assembly of Shimano 7-speed Hub Axle Unit
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
Internal gear theory
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.
Posted in Updates
Tagged compound, gearing, gears, hub, internal, internal-gear, multi-stage, Nexus, planetary, repair, Sachs, shimano, SRAM, Sturmey-Archer
Comments Off on Internal gear theory
Flats photos
John added photos of a frame pump, mini pump and CO2 inflator to flats.html.
Stuck seatposts
John has added information on yet another way to remove a stuck seatpost — dissolving it using a strong chemical.…
Posted in Updates
Tagged bicycle, lye, maintenance, removal, remove, repair, seatpost, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, stuck
Comments Off on Stuck seatposts
Flats
John has made a few revisions to Sheldon’s page on flat tires. More to come…
Posted in Updates
Tagged bicycle, blowout, flat, inner tube, maintenance, patch kit, pump, puncture, repair, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, tires, tyres
2 Comments
Repair of Shimano STI Drop-Bar Brake/Shift Levers
These levers no longer index properly when the grease inside gums up — and the internals are very complicated. John Allen has posted an article describing several approaches to repair of these levers, and with a link to an expert … Continue reading
Posted in New pages
Tagged 10-speed, 11-speed, 7-speed, 8-speed, 9-speed, bicycle, bowden cable, brifter, Mcvey, repair, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, shifter, shimano, SIS, STI
6 Comments
Harriet Fell’s updates to the site
While John is plugging away at adding new material to the site, I continue to work on cleaning up the code. I had started converting files to XHTML but I am now converting to HTML5 instead. I am trying to … Continue reading
Posted in Updates
Tagged bicycle, maintenance, repair, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com
4 Comments
