ChinookPass
Posts:809
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| 04/14/2016 11:51 AM |
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When it comes to racing bikes on the road, discs are still a solution looking for a problem. It seems like they've mostly figured out the problems with braking and carbon rims for racing.
I see a huge difference between the danger of getting sliced by a disc and getting skewered by a broken spoke. The spoke has to break for it to be dangerous (adjusting your wheel while rolling is another matter), the disc could always be dangerous just by being present. It sure didn't take long for there to be a very visual case of the danger.
My only question is why haven't there been any visible incidents from amateur racing where discs have been in play for a few years?
In any case, lining up for PR has got to feel like a crapshoot. Odds of coming home with broken bones seem much higher than any other race except maybe the first week of the Tour. |
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stronz
Posts:447
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| 04/14/2016 12:18 PM |
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just for grins - go to the cyclingnews page where the article about ventoso is fresh - the discussion is pretty fun. Some good old internet ugliness Brit style
http://www.cyclingnews.com/news/ventoso-blasts-the-use-of-disc-brakes-in-the-peloton/ |
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Dale
Posts:1767
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| 04/14/2016 01:41 PM |
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And the plot thickens... or in this case perhaps the clot thickens
http://cycling-today.com/lampre-merida-manager-not-convinced-ventosos-injury-was-caused-by-disc-brake/ |
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Cosmic Kid
Posts:4209
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| 04/14/2016 02:29 PM |
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Well, it is not completely intuitive as to how it could ahve happened....as noted, the injury is on his left leg and discs are mounted on the elft side of a bike, so how does that happen?
But if start with the appearance of the would (triangular in shape, pointing down) and lay out two bikes with their left sides facing each other (so reversed from each other) and the angle the bikes over slightly, you can see how a disc could easily have caused that injury.
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| Just say "NO!" to WCP!!!!
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79pmooney
Posts:3189
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| 04/14/2016 02:57 PM |
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Cosmic, it sounds like Ventosa basically ran up Rier A's butt, putting his wheel just to the right of A's rear wheel and probably slamming his HBs on A's butt and putting A's bike between his legs. Then, when Ventosa stops abruptly, his probably already unclipped left foot would keep going forward like the skate of a forward just sat on his can by a defenseman. (And neither Venotosa or that forward would even notice a clean sharp blade slicing his shin while he is having his wind knocked hard!)
Ben |
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Cosmic Kid
Posts:4209
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| 04/14/2016 03:36 PM |
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BUt if it happened that way, the wound would have been a thin slicing wound. In order for the wound to be triangular in nature like that (and have come from a disc), the disc would have to be perpendicular to ventoso's leg and coming in at an angle.
As it penetrated deeper, it also becomes wider...hence the triangular "flap". |
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| Just say "NO!" to WCP!!!!
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longslowdistance
Posts:2886
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| 04/14/2016 06:35 PM |
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| I would expect a laceration, not a scalpel clean cut. |
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Cosmic Kid
Posts:4209
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| 04/14/2016 07:16 PM |
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| LSD....take plate and put it flat against your calf. Now angle it slightly so the bottom of the plate is away from your leg. Imagine that is the disc rotor and think about it moving into the calf from that angle....you would get exactly the wound Ventoso suffered. A triangular flap that got deeper and wider as the disc went further into his leg. |
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| Just say "NO!" to WCP!!!!
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longslowdistance
Posts:2886
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| 04/14/2016 10:47 PM |
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No argument here. I haven't reviewed the pics of his injury, for some reason not keen to gawk. What you describe is a lac, so that fits. The lay press used terms that I misinterpreted as other than a laceration.
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Orange Crush
Posts:4499
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| 04/15/2016 05:40 PM |
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I don't care for all the speculation whether or not it was a disc...its just that...speculation.
But the bottom line is an experiment was killed on basis of one data point. That is absolute fail.
http://velonews.competitor.com/2016/04/news/commentary-disc-brakes-cyclings-leadership-vacuum_402551 |
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ChinookPass
Posts:809
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| 04/15/2016 06:09 PM |
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| We need some crash testing of discs with dummies, simulated peloton, brick walls, slo-mo cameras, etc. Of course that might reveal a lot more problems than anyone is prepared to deal with. |
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Master50
Posts:340
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| 04/15/2016 07:08 PM |
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Posted By Dale Dale on 04/13/2016 08:50 PM
Who knows in what position the guy he hit was in but that is one nasty gash. I haven't heard the details of the second flesh wound from a rotor in the other incident Ventoso reported.
Sorry to disagree. I first read this when you posted it and it really bothered me that it was his Left Leg. Sorry the pictures in the first link of this thread are showing his RIGHT leg. It all makes much better sense now. |
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ChinookPass
Posts:809
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| 04/19/2016 03:18 PM |
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ok, bananas are safe from discs.
https://youtu.be/JbEt74b9nCU
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Gonzo Cyclist
Posts:568
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| 04/20/2016 10:04 AM |
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I did not really buy into how all of the pros were saying how these were soooo dangerous, but this kind of proves it. And one incident was all it took for everyone to go nuts.
I like Keith's idea, or I even thought of a lightweight shroud over the discThis will not affect sales by nay means, the benefits are huge for the average/serious cyclist, racerboy will not buy one, because he has to race what the pros are on in his full team replica kit.
All of this over the dangers of discs, but, is anybody in the UCI doing anything about motos? Discs have not killed anybody in a race |
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