Motorcyclist speeds through speed bump - GIF

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Jan 19, 2023, 06:07 AM
Altair

Motorcyclist speeds through speed bump - GIF

Motorcyclist speeds through speed bump.

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Previously:

https://www.homemadetools.net/forum/...765#post206314
https://www.homemadetools.net/forum/...607#post205701
https://www.homemadetools.net/forum/...139#post203505
https://www.homemadetools.net/forum/...987#post198894
https://www.homemadetools.net/forum/...644#post189956
Jan 19, 2023, 07:27 PM
Gadgeteer

Can anyone explain physics involved?
Jan 19, 2023, 08:07 PM
bob_3000

Quote:

Originally Posted by Gadgeteer

Can anyone explain physics involved?

Ya I can, fat guy ate sh!t and his own bike hit him...luckily it only hit him once.
Jan 19, 2023, 08:20 PM
kb4mdz

And don't extend your arms/hands to catch yourself!! That way leads to broken wrists, hands, arms!! Tuck & roll!!!
Jan 19, 2023, 08:58 PM
bruce.desertrat

Quote:

Originally Posted by Gadgeteer

Can anyone explain physics involved?

It looks like there is a slight depression in the road at the edge of the speed bump; he didn't shift his weight towards the rear as he went over the hump, and it's really low res but it appears his wheel bent or turned a little in that depression which set him up for that endo.
Jan 19, 2023, 09:13 PM
old kodger

Quote:

Originally Posted by bruce.desertrat

It looks like there is a slight depression in the road at the edge of the speed bump; he didn't shift his weight towards the rear as he went over the hump, and it's really low res but it appears his wheel bent or turned a little in that depression which set him up for that endo.

looks much more like he was taken by surprise by the hump, when his front wheel hit it it went over no trouble but he applied the brakes, because by then only his front wheel was on the ground it locked up.....whoops, over the top.
Jan 19, 2023, 09:15 PM
Gadgeteer

If a road surface contour can result in tossing a rider into the air when going too fast, might just as well have a shooter posted nearby to dispatch speeders. This eventuality parallels placing new roundabouts at old intersections without providing surface warnings for unsuspecting cycle riders.
Jan 19, 2023, 09:45 PM
Gadgeteer

Quote:

Originally Posted by old kodger

looks much more like he was taken by surprise by the hump, when his front wheel hit it it went over no trouble but he applied the brakes, because by then only his front wheel was on the ground it locked up.....whoops, over the top.

I think you have it. Apparently, he should have slowed down, prior to hitting the bump, instead of after hitting it. But, it, also, looked like a speed dip and bump.
Jan 19, 2023, 10:02 PM
bob_3000

Quote:

Originally Posted by bruce.desertrat

It looks like there is a slight depression in the road at the edge of the speed bump; he didn't shift his weight towards the rear as he went over the hump, and it's really low res but it appears his wheel bent or turned a little in that depression which set him up for that endo.

Pretty sure that is exactly what I said. :D
Jan 20, 2023, 04:56 AM
Hoosiersmoker

Instant karma... Signs, paint on the bump (albeit faded) and a bad choice to ignore those.
Jan 20, 2023, 09:22 AM
NeiljohnUK

Quote:

Originally Posted by bruce.desertrat

It looks like there is a slight depression in the road at the edge of the speed bump; he didn't shift his weight towards the rear as he went over the hump, and it's really low res but it appears his wheel bent or turned a little in that depression which set him up for that endo.

Combined with the forks hitting their maximum compression travel hard enough to possibly deform and lock the tyre against the engine before twisting sideways and simply becoming a pivot.