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• #27
I is bald. I haz lean.
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• #28
On a flat road, when leaning into a turn at angle theta from vertical the sideways force you demand from your tyres is equal to tan(theta) times the weight pushing down on them. This number is the minimum coefficient of friction needed between your tyres and the road for you not to skid. Considering the graph of tan(theta) is instructive: it climbs steadily from 0 at 0 degrees lean getting steeper only slowly at first. It reaches 1 at 45 degrees lean then goes up ever more rapidly towards infinity at 90 degrees.
1 is a pretty impressive coefficient of friction. Googling brings up the range 0.5 to 0.8 as a general purpose number for rubber on dry ashphalt, although some sites suggest you can get up to 2 with the right rubber on the right surface, although not necessarily on a rolling tyre.
If the road is cambered, it's the angle between your lean and 90 degrees from the road surface that decides how much friction is needed.
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• #29
God I'm glad this shit is instinctive on the whole. If I had to apply maths every time I took a turn I'd do one for sure.
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• #30
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• #31
Shopped. Just look at the pixels
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• #32
Why does no-one ever post the photo that was taken about 1/2 a second later…?
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• #33
Rep'd, but it would be more realistic with dropout in his original photo pose (in B&W).
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• #34
fify -
• #35
Why does no-one ever post the photo that was taken about 1/2 a second later…?
Photo or it didn't happen.
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• #36
Jobst does actually know how to lean a bike.....
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• #37
Dredge. Spotted this while in Singapore. Wasn't sure where else to put it.
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• #38
Just thought better to re-ignite this, seems like it could come in handy this arvo
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• #39
Seems legit
Bald men can lean.