Ouch.

Is there no way to encapsulate a disc rotor to prevent this problem from happening?

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yes, it's called a tire and tube

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

I like my rim brakes!!!

HAs anyone actually seen evidence this was caused by a rotor? Just asking

CC

And so it begins again...

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http://bikeblather.blogspot.com/

Bummer, she had an incredible season. I think she already had the overall wrapped up in the DVV regardless of the outcome of this race.

Disc brakes aren't going away in CX/MTB. It time for people to stop complaining and wishing for the good 'ol days of poor stopped power.

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Any run that doesn't include pooping in someone's front yard is a win.

She finished 7th today, with that injury and a shoe change.

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Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/

Nasty injury. Can't believe she finished so well all things considered.

Someday I'm going to convince you to stand in the pit with a spare shoe for me just so I can say I got a shoe change midrace.

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Any run that doesn't include pooping in someone's front yard is a win.

About 2 cm lateral to her current cut she has a well-healed linear wound that looks like it would have looked a lot like her current injury when fresh (making some suppositions).

Was this also caused by a rotor?

I have no intention of switching to disk brakes and I have no horse in this race.... but it seems like disk rotors are being blamed for a lot of injuries that are pretty similar to injuries that happened before disk brakes were common.

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Jason
None of the secrets of success will work unless you do.

lol

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Tech writer/support on this here site. FIST school instructor and certified bike fitter. Formerly at Diamondback Bikes, LeMond Fitness, FSA, TiCycles, etc.
Coaching and bike fit - http://source-e.net/ Cyclocross blog - https://crosssports.net/ BJJ instruction - https://ballardbjj.com/

This one looks more plausible - right knee to rear rotor of bike in front. Still quite difficult to hit a disc that way without other parts of you and your bike hitting the rider in front first, and you should still end up with a load of spoke scrapes on the outside of your leg. Wasn't convinced by the Ventoso injury - there I think he fell into a wheel that was still moving forward slowly and the rear spokes moving upwards happened to cut into him.

You think CX is going back to rim brakes? What about mountain? Do they have to as well?

I would pay just about anything for that joke to be put to rest.

For good reason, though, right? I remember one "disc rotor" injury that had suspicious looking tooth marks all along the edge of the cut.

Also your subject line seems to imply it was a "season-ending injury" when really it was just her last race of the season, which she finished.

Unlike Ventoso who had the crash and laceration at Paris-Roubaix that started this all, Compton wasn’t surrounded by dozens of riders going 45+ kph when she crashed. I would imagine that she would then have a more accurate recollection of what happened.

She could still be wrong about what cut her knee, but I think she has a greater chance of being right.

Not to mention this ”season ending injury” requires a total of couple dozen stitches & few weeks rest before resuming training

CC

Yeah..."tooth" marks on an ~1" pitch? I seem to recall that opinion was put forth by an industry-paid "expert" who had only seen photos posted on the internet :-/

I hear you on the "season ending". It wasn't clear to me from the cycling news article that this was her last race anyway. I found that out from her tweet.

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http://bikeblather.blogspot.com/

That's not the point. The point is whether or not it's a good idea to have more of them in an event with higher speeds, closer racing, and higher likelihood of crashes involving multiple riders...and for arguable reasons (not really an overall performance improvement).

Hey, I personally thought these safety concerns for road racing were a bit overblown...but, we're starting to see more and more cases of possible injuries. This happens to be a case from CX, which is where many have pointed to as an example asking "why isn't it happening there?" Did you notice the link in the article to another pro CX disc injury back October? Sounds like she crashed solo?

It will be interesting to see what happens as even more disc-equipped bikes are raced in pro road racing.

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http://bikeblather.blogspot.com/

WTF?

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"Good genes are not a requirement, just the obsession to beat ones brains out daily"...the Griz

Why so quick to blame the rotor/ After all mountain biking's been racing with them for years.

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Trust me I’m a doctor!
Well, I have a PhD :-)

Definitely not blaming, but is there not a way to cover them as well and potentially make them safer.

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Curious how a rounded disc makes a cut like that. Unless the discs they're using aren't rounded.

Looks like a rock cut to me, seen plenty exactly like that doing MTB.
She may not have seen the rock in the mud and assumed the rotor.

I'm waiting for video evidence to see the crash.

It's possible to make most things safer. But I've yet to see any real evidence that disc rotors cause any more injuries than any other part of the bike. Chainrings aren't covered and I've seen plenty of injury from those, even had them myself.

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Trust me I’m a doctor!
Well, I have a PhD :-)

Agreed on chainrings. They do make chainguards to guard against rocks and such, but do a decent job in protecting you as well.

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[not responding Tom or to anyone in particular]

So let's assume she got this from the disc rotor, that her knee went into the rear wheel of the rider infant of her. I wonder what her knee would have looked like if she had gone into the rear spokes/dropout/QR of a rim brake bike? Bikes have so many sharp and hard edges that can split a knee open.

I think that anyone trying to make a point about disc brakes from this gets an eye-roll from me.

JFC cycling is so full of petty jealousies and pointless conflict. I really don't understand why people get so hot under the collar about bike tech. I mean, just read the comments sections on Bikerumor, Cyclingnews or Road.cc and they are full of people with nothing else to do but shit on every single new product.

A long time ago I got tired of justifying bike purchases to naysayers and luddites. I don’t care for some pedantic codex that lists how bikes should look and what I should wear while riding them. No sport is as hopelessly in love with its past nor as indifferent to its future as cycling. If I was a triathlete I'd buy an Diamondback Andean as the ultimate fuck-you to all the bike snobs out there.

We need more people like you on the forums.

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Make Inside Out Sports your next online tri shop! http://www.insideoutsports.com/

I'd imagine that a cover like one used on MX motorcycles might work. Pretty light weight.
Yet, to a weight wennie, it is more weight.

I'd go with the incidence of rotor injury is relatively low, in every discipline.


MTB has used discs for 15+ years and there has been no call there for rounded discs, covered discs or no discs.

Type of crash may differ, but I still think it is a relative nonstarter.

That being said, still sucks for those 1 in a 1000 or so like Katie F'n Compton.

...hence my RChung quote in the first post.

And to those saying "just cover them"...the hard part for road bikes is doing that but not causing problems with overheating on descents...or, just adding additional aero drag. Not to mention even MORE mass added to an ~ 1lb difference vs a rim brake system.

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http://bikeblather.blogspot.com/

It's too bad there's no possible way to collect real evidence.

And there are lots of them in the pro peloton, in mountain bike races and cyclo-cross.

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Trust me I’m a doctor!
Well, I have a PhD :-)

You're too late. Your clever observation was already given in post 1.

would have loved to have seen you on a rim braked cyclocross bike in that race. would have been exceptionally entertaining.

do you know that I raced BMX as a kid and BMX and MTB as an adult?

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

yes, since you talk about it all the time. doesn't matter in this context. your standard "tom a response" is just funny for a situation like this, regardless of what actually injured compton.

well I only give my Tom A. response to silly things like "let's cover discs". I for one don't have an issue with disc brakes anywhere, especially cyclocross.

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

My disc brake QR tri bike arrives Tuesday (finally!). While my goal with it is not giving the world a FU, I eschew non-data based arguments and anecdotes are not facts. If someone presents anecdotes, they are telling you the bigger picture trend is against them.

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2018 Races: IM Santa Rosa, Vineman Monte Rio, Lake Tahoe 70.3

Or perhaps too early, since we're still having this conversation. If data had been collected when I first made that observation we'd have had a couple of years of data to examine. That is, if there were some way to collect real evidence, but of course there isn't.

Her husband's name is "Legg?"

That's kinda funny

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"What's your claim?" - Ben Gravy
"Your best work is the work you're excited about" - Rick Rubin

The discussion over here is interesting:

http://www.cyclingnews.com/news/compton-injured-by-disc-brake-rotor-in-lille/#disqus_thread

Best quote from the comments:

"We'll never know how many serious injuries disc brakes have prevented."

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"They're made of latex, not nitroglycerin"

So every time a cyclist suffers an accident we're going to blame them and just disregard their version? Or is it just with disc brakes?

Really classy ...

Yea, and are we going to blame the two cyclists in front of Katie for causing the crash without hearing their side? Extra classy.

We might as well. Why not? Anything but admitting we don't have the facts (yet)

It's too bad there's no possible way to know.

Real evidence as in thousands of miles raced with discs and what, 3 or 4 incidents, 1 of which was debunked?

The nice thing is that the plural of "anecdote" is "data," and that there's no reason to even collect a single anecdote when cycling is dangerous.

Or flawed data, as we’ve already seen.

But there’s no debate that cycing is dangerous.

Was it? Seems pretty debatable to me...especially considering who paid for the "debunking" and how it was done...

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http://bikeblather.blogspot.com/

Too bad there's no possible way to collect usable data, and no possible method to analyze flawed data.

Not all riders are using rounded rotors yet, but the real fault IMHO lies with the UCI for not requiring them. In cyclocross the officials check tire width at UCI races, they can easily check for rounded rotors at the same time. There's no downside to them, riders and teams are just slow to start using them for whatever reason. Making it a rule would speed that implementation.