@JSAllenTweet
Joined April 2014
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Bike Hero - mailchi.mp/abea/nobody-expec…
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How To Protect Yourself From Unsafe Passes - mailchi.mp/abea/nobody-expec…
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Here's the truth: You can go anywhere by bike. Let us show you how, from the comfort of your home. cyclingsavvy.org/2020/12/cyc…
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CyclingSavvy's "Control and Release" strategy not only makes overtaking safer. It makes motorists smarter. cyclingsavvy.org/2020/11/con…
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Boston-area CyclingSavvy course - mailchi.mp/cyclingsavvy/bost…
Passed by a pedicab in Provincetown: youtu.be/mYUQJDXuXLs?a via @YouTube
Passed by a pedicab in Provincetown: youtu.be/J5nTf-hTJ4s?a via @YouTube
I added a video to a @YouTube playlist youtu.be/-EQ6YTTc8W8?a pedicab sheldon
pedicab sheldon: youtu.be/-EQ6YTTc8W8?a via @YouTube
Bob Sawyer on electrically-assisted tricycle: youtu.be/MGRa8mLullg?a via @YouTube

Bob Sawyer on electrically-assisted tricycle

95 year old Bob Sawyer rides an electrically-assisted upright tricycle

youtube.com
Handcycle racers: youtu.be/SN86K-j1ksE?a via @YouTube
Bicycle chain and rear sprocket engagement: youtu.be/11QCEyBXx9M?a via @YouTube
Bicycle chain and chainwheel engagement: youtu.be/QU8LjVApf8M?a via @YouTube

Bicycle chain and chainwheel engagement

How the rollers of a bicycle chain engage the teeth of a chainwheel...

youtube.com
How consistent is the internal math of cyclecomputers?: youtu.be/Vds8OYFIXKc?a via @YouTube

How consistent is the internal math of cyclecomputers?

Three cyclecomputers are set to the same wheel size and run through...

youtube.com
Sheldon Brown memorial service: youtu.be/C2AN7XZ17LU?a via @YouTube
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