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Disc Brakes

iainf72iainf72 Posts: 15,774
edited June 2019 in Pro race
Well, I was one of those who said the danger was not really there.

I appear to have been wrong

https://twitter.com/matteojorg/status/1 ... 8261230594

That said, we all saw what happened to TD with a chainring and we're not freaking out about those...
Fckin' Quintana … that creep can roll, man.
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Posts

  • gweedsgweeds Posts: 2,020
    Bike components sometimes cause injuries.

    Nothing to see here.
    Napoleon, don't be jealous that I've been chatting online with babes all day. Besides, we both know that I'm training to be a cage fighter.
  • veronese68veronese68 Posts: 22,287 Lives Here
    Is that on his right leg?
  • inseineinseine Posts: 5,609
    I once helped a guy in a race who’d crashed and his saddle had become detached, the frame went through his hand. Lots of sharp bits on a bike.
  • m.r.m.m.r.m. Posts: 1,639
    veronese68 wrote:
    Is that on his right leg?
    Yes looks like the outside of his right calf.
    PTP Champion 2019
  • PhilipPirripPhilipPirrip Posts: 616
    And Colin Reuter got a through axle lever through his knee, could equally have been a standard quick release;

    https://twitter.com/resultsboy/status/1 ... 9776001026

    Time to demand that only push alongs with solid wheels are permitted in competitive events.
  • DeVlaeminckDeVlaeminck Posts: 5,574
    Holy cow! It's worth keeping an open mind on discs and injuries in bunch racing.
    AFC Mercia women - sign for us
  • oxomanoxoman Posts: 7,241
    A front chainring can do worse so do we ban them. Worst injuries I've seen have been when a component has failed either causing or because of an accident and usually brake levers. MTBers have been using discs for a long while and go over a lot bumper stuff and crash more but they don't guard them. Bloody nanny state, it happened hopefully the rider will recover and carry on as normal. It's a risk partaking any sport with an element of danger that we accept when we participate.
    Too many bikes according to Mrs O.
  • bompingtonbompington Posts: 7,023
    Surely the vast majority of racing injuries come from impacting the road?

    Perhaps we should ban roads.
  • redvisionredvision Posts: 2,508
    I personally have never liked disc brakes, purely due to the appearance (I think they look fugly). However, as others have said above, accidents happen and a similar injury could have been caused by a chain ring or other bike part. Really isn't worth making a song and dance about it.
  • DeVlaeminckDeVlaeminck Posts: 5,574
    Yes I wouldn't ban them but I'd keep an open mind.

    As said above bike components can cause injury but obviously some components have a greater possibility of causing injury than others. Looking at that link I haven't seen many if any chainring injuries that bad but maybe anything caused by a disc rotor just gets highlighted.

    The problem with discs is they offer no advantage for pros - they don't need wider tyres and don't care about saving their rims - they are about selling bikes.

    Edit - the other point is - even if they are no more risky than a chain ring - effectively by adding discs you triple the chance of that kind of injury.
    AFC Mercia women - sign for us
  • paul2718paul2718 Posts: 471
    Chain rings (and cassettes) aren't rotating unless the rider is pedalling, and there's no momentum behind them. Discs OTOH.

    Problem surely goes away with a simple guard? So it should be a non-problem.

    Although I've never understood the obsession with being able to stop when cycling is all about making it go. And I've never had rim brakes that weren't more powerful than the available grip. So remain baffled on the attraction.
  • Jez monJez mon Posts: 3,809
    oxoman wrote:
    A front chainring can do worse so do we ban them. Worst injuries I've seen have been when a component has failed either causing or because of an accident and usually brake levers. MTBers have been using discs for a long while and go over a lot bumper stuff and crash more but they don't guard them. Bloody nanny state, it happened hopefully the rider will recover and carry on as normal. It's a risk partaking any sport with an element of danger that we accept when we participate.

    MTBers don't ride in groups of 200 odd though?
    You live and learn. At any rate, you live
  • oxomanoxoman Posts: 7,241
    Bad enough racing in fifties on narrow trails so pretty similar risk I'd have thought. Biggest danger from disc brakes is burns, try touching a disc after descending greenhow hill at pateley bridge.
    Too many bikes according to Mrs O.
  • greasedscotsmangreasedscotsman Posts: 7,224
    Have I just experienced time travel?
  • AlejandrosdogAlejandrosdog Posts: 2,007
    Have I just experienced time travel?

    yes.....

    I blame unequal braking distances for the crash in the first place. Ban rim brakes. Disc brakes save lives
  • ProssPross Posts: 22,092
    Yes I wouldn't ban them but I'd keep an open mind.

    As said above bike components can cause injury but obviously some components have a greater possibility of causing injury than others. Looking at that link I haven't seen many if any chainring injuries that bad but maybe anything caused by a disc rotor just gets highlighted.

    The problem with discs is they offer no advantage for pros - they don't need wider tyres and don't care about saving their rims - they are about selling bikes.

    Edit - the other point is - even if they are no more risky than a chain ring - effectively by adding discs you triple the chance of that kind of injury.

    This basically. Some components on a bike can't realistically been engineered out with current technology and therefore you have to accept that they can cause injury (same with Bomps example of the surface you have to travel on!) but the basic principles of Health and Safety are that you eliminate risk where reasonably practicable then mitigate for those you can't remove so, unless someone can demonstrate that rim brakes are a greater risk to safety, disc brakes introduce an unnecessary hazard into bunch racing.
  • rick_chaseyrick_chasey Posts: 46,503 Lives Here
    Have to say, the disc injuries look particularly gruesome.
  • ProssPross Posts: 22,092
    Have to say, the disc injuries look particularly gruesome.

    Yep, I had chainrings enough times but once they dig in they stop (which is how you can identify them) so don't do huge damage.
  • dish_dashdish_dash Posts: 4,721
    The coverage of disc brake injuries kinda reminds me of this chart...

    Causes-of-death-in-USA-vs.-media-coverage.png
  • photonic69photonic69 Posts: 993
    Just very unlucky I guess? Just like the guy who got the thru-axle lever in is knee! However this is now about the 3rd occurrence of this that I have heard of in pro racing. There are probably more?

    Chainrings are much more viscious with anywhere between 50-56 very sharp teeth. Luckily when crashes happen at speed in pro races then everyone would be in the large ring anyway with the chain offering protection. At climbing speed when riders are in the inner ring then the danger is mitagated.
  • frisbeefrisbee Posts: 691
    photonic69 wrote:
    Just very unlucky I guess? Just like the guy who got the thru-axle lever in is knee! However this is now about the 3rd occurrence of this that I have heard of in pro racing. There are probably more?

    Chainrings are much more viscious with anywhere between 50-56 very sharp teeth. Luckily when crashes happen at speed in pro races then everyone would be in the large ring anyway with the chain offering protection. At climbing speed when riders are in the inner ring then the danger is mitagated.

    Unlike us useless amateurs the average pro looses or jams their chain every 3.7 metres.
  • ridgeriderridgerider Posts: 2,757
    Pross wrote:
    Have to say, the disc injuries look particularly gruesome.

    Yep, I had chainrings enough times but once they dig in they stop (which is how you can identify them) so don't do huge damage.
    But in a crash situation, aren't wheels more likely to be stationary rather than rotatng, therefore this discussion is related to the injury causation of non-rotating discs? So more related to heat rather than sharp edges?
    Half man, Half bike...and now more familiar with the work of Prostate Cancer UK
  • FocusZingFocusZing Posts: 4,416
    Yep. I knew this would happen disc brakes were always going to be a problem, especially with close racing and speed. Drum brakes is the answer, the sooner the better!
  • greasedscotsmangreasedscotsman Posts: 7,224
    Maybe this is answer?

    Money-or-Safety.jpg
  • AlejandrosdogAlejandrosdog Posts: 2,007
    Maybe this is answer?

    Money-or-Safety.jpg


    def this but not white shorts.
  • FocusZingFocusZing Posts: 4,416
    Maybe this is answer?

    Money-or-Safety.jpg

    Aerodynamics and flexibility maybe an issue, If it was a UCI policy and every team had to comply though? This seems to be a good solution to racing injuries. Popping during a crash would also add a welcomed extra element to the race.
  • DeVlaeminckDeVlaeminck Posts: 5,574
    And Colin Reuter got a through axle lever through his knee, could equally have been a standard quick release;

    https://twitter.com/resultsboy/status/1 ... 9776001026

    Time to demand that only push alongs with solid wheels are permitted in competitive events.

    I'm not familiar with through axle levers but in the comments the guy it happened to suggests that they don't fold in/out in the same way as QRs and (as you fan see) the angle is typically not the same - it points parallel to rather than towards the bike - I mean it's obviously a freak accident either way but....

    I don't actually give a **** as the chances of it happening to me are close to zero but...

    Clearly all progress is dangerous.
    AFC Mercia women - sign for us
  • redvisionredvision Posts: 2,508
    Like everyone is saying, accidents happen.

    Didn't a rider's saddle somehow snap off his seatpost at the giro? Now that could have been a bloody painful injury but somehow he avoided it. If it had caused an injury no one would be calling for them to be banned.

    How many wheels and spokes have snapped resulting in injuries?

    Accidents happen.
  • veronese68veronese68 Posts: 22,287 Lives Here
    Clearly all progress is dangerous.
    This ^, change is bad. Bring back the Ordinary bicycle.
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