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Tag Archives: bicycle
Osman Isvan on Hills, Winds — and Data
Osman Isvan takes a deeper look into hills and winds. Do you (or should you) work harder when climbing a hill? How hard do you (or should you) work on a given hill? Does it depend on your gearing? The … Continue reading
Posted in Updates
Tagged aerodynamics, bicycle, climb, climbing, gearing, hills, Isvan, Osman, Osman Isvan, propulsion, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, wind
2 Comments
Osman Isvan on Ride Data
Osman analyzes data from over 1000 of his own bicycle rides to see what they show, and describes what might be discovered by mining the huge troves of data held by Strava, RidewithGPS and other GPS-based mapping services. Osman makes … Continue reading
Posted in Updates
Tagged bicycle, cyclecomputer, data, energy, Garmin, GPS, Power meter, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, speed
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Synchronizing Audio and Video
Sheldonbrown.com technical writer and editor John Allen frequently shoots video from his bicycle using more than one camera; sometimes a separate audio recorder. The output must be synchronized in post production. John has now performed a major update on his … Continue reading
Posted in Updates
Tagged action cam, Audacity, audio, bicycle, camcorder, clapboard, clapstic, FPS, helmet cam, helmet camera, NTSC, PAL, progressive, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, sync, synch, synchronizing, time code, video
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Braking News
We have updated our page about the different types of bicycle brakes, which added descriptions and several photos illustrating the different types.
Posted in Updates
Tagged bicycle, brakes, caliper, cantilever, direct pull, disk, drum, Sheldon, Sheldon Brown, sheldonbrown, V brake
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Additions to cranks page
John has added quite a bit of text to the cranks page; more about crank length, and an entirely new section on how to check for several kinds of damage; also several illustrations where there were none before.
Posted in Updates
Tagged bicycle, bottom bracket, compatibility, cotterless, crank, crank arm, dimensions, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, spindle, square taper, taper
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Gear calculator updated
The Gear Calculator has been updated with new Shimano, SRAM and Campagnolo cassettes, and the new Shimano Steps 5-speed internal-gear hub for E-bikes. French and German versions of the Calculator have been updated too.
Posted in Updates
Tagged 29er, 32 inch, 36 inch, 7-speed, 8-speed, 9-speed, bicycle, bicyclette, braquets, calculator, children, cranks, development, Entfaltung, Fahhrad, fatbike, gain, gain ratio, gear inches, gearing, GPS, internal-gear, length, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, v
1 Comment
Addition to post about 360-degree video
Thanks to Philip Carlson, our article about 360-degree video now includes a video clip illustrating the nighttime performance of the Garmin VIRB 360 camera. As expected, there is camera-motion blur, but it looks much different from that with a conventional camera.
Posted in Updates
Tagged 360, 360 degree, bicycle, Garmin, GPS, shelbroco, Sheldon, Sheldon Brown, sheldonbrown, sheldonbrown.com, video, VIRB, VIRB 360
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Rebuilding freewheels
We have a much expanded description of how to rebuild a freewheel, now a new article and no longer just a paragraph in our main article on freewheels.
