Disc Brake Rotor Cut to the Bone During Katie Compton CX crash
Interesting to see maybe the first real reported disc brake cut. No details on who caused the crash and can't find a replay to see which rotors they were using. Looks gruesome, but with the newer smooth round rotors maybe this doesn't happen again
https://www.cxmagazine.com/katie-com...ds-full-season |
How is it even known that a rotor caused this? All of the Shimano rotors that I've seen/used have rounded edges and couldn't cut like that.
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Let me go stock up on popcorn.
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It's too bad it's impossible to collect the data necessary to evaluate the relative risk of getting injured by different causes, and that the proper methods of analysis haven't yet been invented.
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I mentioned on another of these (list of deleted descriptives) posts that an MTB racer on another site reported getting a huge gash in the forearm from a disc rotor ... on a pleasure ride. No reason to lie, as there as no money/exposure on the line ... just a gruesome pic of a gash and a matter-of-fact report.
When someone tells me a dull knife cannot cut ... I am tempted to say, Let's test that. Hold out your arm." Not giving up my discs, not on any of the many sides a person could possibly be on ... just the facts, Ma'am. |
Originally Posted by Maelochs
(Post 20165622)
When someone tells me a dull knife cannot cut ... I am tempted to say, Let's test that. Hold out your arm."
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Cyclocross is different than road, where heat dissipation isn't really necessary and most are running 140mm rotors, so you don't see many Shimano rotors even on Shimano sponsored bikes. The most common rotor I see is the sram centerlines, which may or may not be the new updated versions with the rounded edge
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Originally Posted by Maelochs
(Post 20165622)
I mentioned on another of these (list of deleted descriptives) posts that an MTB racer on another site reported getting a huge gash in the forearm from a disc rotor ... on a pleasure ride. No reason to lie, as there as no money/exposure on the line ... just a gruesome pic of a gash and a matter-of-fact report.
When someone tells me a dull knife cannot cut ... I am tempted to say, Let's test that. Hold out your arm." Not giving up my discs, not on any of the many sides a person could possibly be on ... just the facts, Ma'am. https://www.bikerumor.com/2017/06/14...ands-survives/ |
A rotor is what, 3 mm thick?
With enough pressure behind, say as when landing with a significant part of an adult’s body weight, it’ll cut just fine into something like human skin radiused or not. |
Originally Posted by PepeM
(Post 20165599)
Let me go stock up on popcorn.
:popcorn:popcorn:popcorn |
Originally Posted by Maelochs
(Post 20165622)
I mentioned on another of these (list of deleted descriptives) posts that an MTB racer on another site reported getting a huge gash in the forearm from a disc rotor ... on a pleasure ride. No reason to lie, as there as no money/exposure on the line ... just a gruesome pic of a gash and a matter-of-fact report.
When someone tells me a dull knife cannot cut ... I am tempted to say, Let's test that. Hold out your arm." Not giving up my discs, not on any of the many sides a person could possibly be on ... just the facts, Ma'am. But I'm not going to lose any sleep worrying it will cut my finger. A dull knife has about as much in common with a 2mm rounded bullnose edge as my bowling ball blade does with a table saw. Just sayin. |
Then there's paper cuts :popcorn: :trainwreck: :deadhorse:
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Originally Posted by redlude97
(Post 20165549)
No details on who caused the crash and can't find a replay to see which rotors they were using.
Originally Posted by Katie
I was riding the line in the rut and Helen [Wyman] literally ran into me on my right and took me out,” Compton told Bicycling. “Nikki [Brammeier] was on my left doing the same thing… There was no room to pass there and they should have waited instead of crashing people out just to get by.
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Originally Posted by dabac
(Post 20165660)
A rotor is what, 3 mm thick?
With enough pressure behind, say as when landing with a significant part of an adult’s body weight, it’ll cut just fine into something like human skin radiused or not. So landing at high speed onto a spinning 3mm METAL rotor? Yeah you bet it will cut human skin, easily. Cut through bone too if land just the right way. Is it a reason to get rid of rotors? Hell no. Flipping over a handlebar and smashing intoa rock? Every time I ride, I risk more serious injuries from an angry pickup truck driver or some she devil behind a giant Escalade and has no sense of the dimensions of the truck. If I was a competitive racer, I would think inexperienced or irresponsible rider would pose more danger than any disc brake. I think cyclists face far greater dangers for every pedal on the road than any disc brake rotor, solo ride or in a race. |
If safety was any concern at all in pro road cycling, riders wouldn't race at 40 mph in what amounts to a bathing suit and an eggshell. Compared to what happens when you dismount at high speed and hit the road, curb, and other bike ect. the spinning wheels of death is the least of you worries. Hitting the ground related injuries happens in every single race, but ppl get all bent out of shape, when they finally can prove a disc related injury. Proportion guys, proportions!
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Yar... Cut skins heals a lot faster than broken bones or internal injuries.
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Originally Posted by zymphad
(Post 20165871)
Yar... Cut skins heals a lot faster than broken bones or internal injuries.
The point here Shouldn't be about banning discs ... it should be accepting that it can happen, which right here, many people deny. As far as cuts, did anybody actually read the post? It showed an even worse gash made by a chain ring. What this is, is more testimony that a disc is the mostly likely instrument to have inflicted this injury ... not according to anti-disc tinfoil-hat-wearers, but according to a freaking pro who rides, trusts, and depends on discs. And will continue to. The guy telling me a disc cannot cut me because it is two millimeters wide ... if it weren't going to be deleterious to my legal status, I would come down there and gash your limbs with a dull axe. You could bleed to death while insisting that you weren't cut. Tinfoil hats off, friends. Discs aren't the next "top-of the charts" cause of death and discs do cause lacerations. Sorry for all you fact-haters. |
Originally Posted by Maelochs
(Post 20166006)
The guy telling me a disc cannot cut me because it is two millimeters wide ... if it weren't going to be deleterious to my legal status, I would come down there and gash your limbs with a dull axe. You could bleed to death while insisting that you weren't cut.
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Was there any evidence on the rotor, like blood or skin?
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Originally Posted by Maelochs
(Post 20166006)
... As far as cuts, did anybody actually read the post? It showed an even worse gash made by a chain ring. ... FC-R2000-CG |
Originally Posted by dmanthree
(Post 20166094)
Was there any evidence on the rotor, like blood or skin?
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Can we all just put aside the disc brakes are safe/unsafe issues for a minute and agree that Katie Compton is a tough as nails badass?
After being cut, ON THE FIRST LAP, she got back on the bike and finished 7th. Then posted the following to twitter: "The good thing about disc rotor slices is that they don’t hurt till much later and the bleeding that doesn’t want to stop cleans the wound nicely." That my friends is a F-ing badass. |
Hi! What's this thread about?
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Originally Posted by datlas
(Post 20166179)
Hi! What's this thread about?
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Originally Posted by datlas
(Post 20166179)
Hi! What's this thread about?
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