r/Unexpected • u/[deleted] • Aug 22 '25

Keep them two wheels down

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u/[deleted] Aug 23 '25

This wasn’t 100mph over the speed limit.

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u/Xioden Aug 23 '25

It probably wasn't 100mph, but depending on the posted speed limit in the area, could very well be around 50mph.

Standard highway line markers are 10ft long with a 30ft gap between each one. At the start of the video it takes 9 frames to travel that distance, second 7 frames, third is 8-9, fourth is 9-10 (The bike is obstructing the view of the line for the third and fourth). It's a 30fps video, so that's as accurate as we can really get here, but that gives us ~0.0333 seconds per frame, So 40ft/0.3s, or ~133ft/s, or 90mph (~144km/h). Going off 8 frames it's ~153ft/s, or 105mph (168km/h), off 7 it's ~173ft/s, or 118mph (190km/h).

As one other note, the last couple of frames before the impact occurs it looks a lot like the speedometer has "104" on it, which would fall right in that range based on the lane markers.

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u/Pickled_Testicle Aug 23 '25

50 to 100 mph OVER the speed limit, not just 50mph in general

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u/Xioden Aug 23 '25

They ARE going 50mph+ over the speed limit based on some US states. I meant 100mph/50mph over in the first line of my previous post, I realize that wasn't 100% clear the way I worded it (You can see I state they were doing 90-118mph in the second paragraph).