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-   -   Disc brake evolution continues (https://www.bikeforums.net/general-cycling-discussion/1063409-disc-brake-evolution-continues.html)

Lazyass 05-20-16 02:15 PM


Originally Posted by 2 Piece (Post 18784084)
I wish people on here would post up to date information! I mean really, that article you posted was from April 4th!

Take a look at this from same source. Dated May 2nd.
UCI to reinstate disc brake trial in the professional road peloton in June | Cyclingnews.com

And? All I said was they banned discs after a rider was injured, which is a fact. Then someone made a failed attempt to say I was wrong so I posted irrefutable proof. Whatever happens after is another discussion.

Lazyass 05-20-16 02:17 PM


Originally Posted by Maelochs (Post 18784086)
Ummmm sure dude, be a lying sack if you like

You're a freaking "sack". Are you saying I wrote the article for cyclingnews and made up quotes from the president of the UCI equipment commission? Go away, drama queen.

Maelochs 05-20-16 02:35 PM


Originally Posted by Lazyass (Post 18784125)
Are you saying I wrote the article for cyclingnews and made up quotes from the president of the UCI equipment commission?

No dude. I am saying---and it is a fact---that UCI never wanted discs and wanted an excuse to ban them. When Ventoso Falsely Claimed to have been cut by a disc, UCI had the ban ready and written and issued in a few hours.

And when the FACTS came out, that Nobody had been cut by a disc, UCI had to withdraw the ban.

Those are the facts. You know them, you choose to ignore them, and quote information based on lies and bias.

Your choice.

Lazyass 05-20-16 02:47 PM


Originally Posted by Maelochs (Post 18784164)
No dude. I am saying---and it is a fact---that UCI never wanted discs and wanted an excuse to ban them. When Ventoso Falsely Claimed to have been cut by a disc, UCI had the ban ready and written and issued in a few hours.

And when the FACTS came out, that Nobody had been cut by a disc, UCI had to withdraw the ban.

Those are the facts. You know them, you choose to ignore them, and quote information based on lies and bias.

Your choice.

I posted proof of my statements. You're shown me nothing. All you've done is called me a lying sack. You must be a millennial.

Post proof that the UCI withdrew the ban because "nobody had been cut by a disc".

Or perhaps read the article 2 Piece posted, where it states that they reinstated them after a conference call with industry manufactures, who were in crises mode after the ban because they're trying to get their 2017 designs finalized.

The UCI banned them after a rider (or two) was injured and after they met with the cycling teams. They were reinstated not after they met with teams and listened to riders concerns, but after the bike manufacturers had a hissyfit.

Those are facts. You have no facts.

PepeM 05-20-16 03:30 PM

This is hilarious.

PepeM 05-20-16 03:42 PM


Originally Posted by 2 Piece (Post 18784084)

Fwiw, that has not been made official yet, so it is still nothing but a rumor.

Here is UCI's response to that article:


The test was suspended following a request to do so made by teams and riders through their representing bodies – after the injuries suffered by Movistar Team rider Francisco Ventoso at Paris-Roubaix Classic. We are continuing to evaluate the situation in close collaboration with riders, teams and the industry
UCI responds to reports of disc brake trial reinstatement - News Shorts | Cyclingnews.com

Canker 05-20-16 03:45 PM


Originally Posted by Maelochs (Post 18782689)
No other type of racing features the kinds of massive pileups that road racing has. Not at all. A couple riders may collide in some other disciplines, but in road racing it is common for a dozen or two dozen riders to fall on top of each other. That sim,ple never happens in other disciplines.

I just posted one right before your post lol. That wasn't even the best megaavalache video I've watched, just funny and short. I've seen plenty of massive pileups in others I've watched.

PepeM 05-20-16 03:49 PM


Originally Posted by Lazyass (Post 18784205)
The UCI banned them after a rider (or two) was injured and after they met with the cycling teams. They were reinstated not after they met with teams and listened to riders concerns, but after the bike manufacturers had a hissyfit.

Those are facts. You have no facts.

That the UCI banned disks is a FACT indeed (actually, they suspended the trial, but ok.) That 'a rider (or two) was injured' I'm not sure I would call a FACT just yet, since there are rumors of a report from a doctor claiming inconsistencies. Still, if we're being lenient with truth, we could pass the Ventoso injury as FACT, but that another rider was injured is nothing but a rumor, so that one is not a FACT. The trial of discs has not been reinstated, so all that second sentence is not a FACT.

Mobile 155 05-20-16 04:27 PM


Originally Posted by Lazyass (Post 18782712)
Hey dude, the UCI banned them because a rider was sliced open by one.

And since support vehicles have been around longer than anyone here has been alive and the first disc brake bike in the pro peloton appeared last summer, then obviously more riders have been injured by support vehicles :lol:

Was the rider sliced by one? It seems as if that contention is suspect at best. Teams cast doubts on whether disc brakes caused Francisco Ventoso's Paris-Roubaix injury - Cycling Weekly

Maybe it was a disk but I don't see why road pros would be more afraid of disks than other riders. It sounds a bit like when there was resistance to derailleurs in the pro peloton. Yes non professionals had derailleur bikes before the pros could use them. So there have been times when racing didn't drive the market.

Somehow the word Luddite comes to mind when it comes to this issue. It seems as if disks have seamlessly transitioned to MTB and CX racing. Perhaps non pros and the other cycling groups are just more flexible but I don't find it credible that the riders are afraid to express their displeasure to the teams or UCI. They have issued complaints before up to and including slowdowns.

Reading the responses from some of the manufacturers it seems as if road disks will be offered the the riding public even if the pro don't use them. And like when derailleurs were introduced the pros may be late adopters. But at this point it sounds like some want to worry now to avoid the rush. And if they are adopted, or not, this debate will soon be forgotten till the next advancement comes along.

Lazyass 05-20-16 04:29 PM


Originally Posted by PepeM (Post 18784355)
That the UCI banned disks is a FACT indeed (actually, they suspended the trial, but ok.) That 'a rider (or two) was injured' I'm not sure I would call a FACT just yet, since there are rumors of a report from a doctor claiming inconsistencies.

Nobody here has seen his medical records. But the UCI banned discs in response to his injury and after meeting with cycling teams who did not want them. Some of you have serious reading comprehension issues. If it was actually caused by a disc or not is something the rest of you can cat fight about.

But when the UCI met with the cycling industry companies they said they would round off the rotors and maybe cover them.

Now why would they have to do that if they aren't injuring anyone?

PepeM 05-20-16 04:39 PM


Originally Posted by Lazyass (Post 18784436)
Nobody here has seen his medical records.

True. So stating that he was sliced by a disc (or not) as FACT would be wrong.


Originally Posted by Lazyass (Post 18784436)
But the UCI banned discs in response to his injury and after meeting with cycling teams who did not want them.

FACT.


Originally Posted by Lazyass (Post 18784436)
Some of you have serious reading comprehension issues. If it was actually caused by a disc or not is something the rest of you can cat fight about.

Grow up.


Originally Posted by Lazyass (Post 18784436)
But when the UCI met with the cycling industry companies they said they would round off the rotors and maybe cover them.

Allegedly.


Originally Posted by Lazyass (Post 18784436)
Now why would they have to do that if they aren't injuring anyone?

Seems like a sensible thing to do, regardless of whether anyone has been injured or not. Wouldn't you agree?

Lazyass 05-20-16 05:04 PM


Originally Posted by PepeM (Post 18784449)
Seems like a sensible thing to do, regardless of whether anyone has been injured or not. Wouldn't you agree?

It would have been "sensible" to do it when the first one appeared on a bicycle many years ago. It's the timing of this decision that's interesting. I thought that was obvious.

PepeM 05-20-16 05:05 PM


Originally Posted by Lazyass (Post 18784492)
It would have been "sensible" to do it when the first one appeared on a bicycle many years ago.

True. It is still sensible to do it today, is it not?

2 Piece 05-20-16 05:33 PM

Here's my personal opinion that I believe is fact. First off, I seriously doubt that the "top riders /best riders" could really careless if they ride bicycles with disc brakes. When you are a professional, you have a job to do and you need to do it. Pros do not make excuses, they make results, it is always the next to best who make excuses why they are not best. Like Ricky Bobby says: 2nd place is 1st place Loser.
Secondly, I think this conspiracy is greatly fueled by all the want to be pros who just spent +$15,000.00 dollars within the last couple years on their prize possession with rim brakes just to find out it is now obsolete. ouch!

Lazyass 05-20-16 06:29 PM


Originally Posted by PepeM (Post 18784493)
True. It is still sensible to do it today, is it not?

I already answered that. It's that reading comprehension deal that's the problem again.

Lazyass 05-20-16 06:32 PM


Originally Posted by 2 Piece (Post 18784541)
Here's my personal opinion that I believe is fact. First off, I seriously doubt that the "top riders /best riders" could really careless if they ride bicycles with disc brakes. When you are a professional, you have a job to do and you need to do it. Pros do not make excuses, they make results, it is always the next to best who make excuses why they are not best. Like Ricky Bobby says: 2nd place is 1st place Loser.
Secondly, I think this conspiracy is greatly fueled by all the want to be pros who just spent +$15,000.00 dollars within the last couple years on their prize possession with rim brakes just to find out it is now obsolete. ouch!

I think the UCI was looking at a rider revolt who didn't want them on one side, and a historical hissyfit from the bicycle industry on the other so they told the industry that they had to make the rotors less sharp and find some way to cover them and prove to the riders that they aren't a danger if they wanted the ban lifted.

Which is what should have happened in the first place.

PepeM 05-20-16 07:07 PM


Originally Posted by Lazyass (Post 18784633)
I already answered that. It's that reading comprehension deal that's the problem again.

Care to quote where you answered that? Or you could just say 'yes' or 'no.'

BlazingPedals 05-20-16 07:58 PM

Getting there...

https://encrypted-tbn3.gstatic.com/i...aGatNU6KDBNFXs

Mobile 155 05-20-16 09:01 PM

You know guys this has been fun but we will have the answer one way or the other by the end of this racing season. At least we will have the answer for a season or two. Then the ones that guessed correctly can come back and say I told you so. But until then we are all guessing to motives and wants of people we hardly know.

I can wait.

FBOATSB 05-20-16 09:35 PM

Wouldn't the next gen. anti lock brakes that are in the works solve some of these problems?

Maelochs 05-21-16 05:40 AM


Originally Posted by FBOATSB (Post 18784959)
Wouldn't the next gen. anti lock brakes that are in the works solve some of these problems?

What are the "problems"?

One problem might that manufacturers are pushing gear on riders that riders do not want and which riders think will Decrease performance (more weight, less aero, slower wheel changes ... and not appreciable braking improvements at their level.)

Another problem might be that UCI is not sufficiently courageous to tell the manufacturers that bike racing does not exist to help manufacturers sell their products (though off course, for the manufacturers, that is all it is for.)

Another problem might be that the riders are atavistic, unwilling to try new technology ... this is not a new phenomenon.

Another problem might be that discs could be dangerous in a pileup.

And yes, Canker, in the few pileups in other disciplines, it hasn’t happened ... but such pileups are regular occurrence in road racing. Just as few pro riders get cut by chain rings or even crank ends, it does happen, simply because there are so many major pileups in road cycling ... one every or every other event, it seems. So the risks could be higher.

Anti-lock brakes? How much more silly will it get? Everywhere anti-lock brakes make a real difference, braking forces and braking distance s are considerably larger (stopping cars, trucks, and airplanes.) Brake lock is Not a large contributor to bike crashes; excessive speed is, proximity of other riders is, road furniture is ... the red mist of competition can be.

Most times when braking is an issue in a wreck it is a rider carrying too much speed into a downhill turn, and the problem is that the rider simply runs out of road. Cutting another six inches off his/her braking distance would rarely make a difference ... and would probably be offset by the increased braking distance caused by the weight of the technology.

Maybe road-racers need to rin fat-bike tires to improve braking, if it is such an issue ... or maybe it really isn’t an issue, which is what the riders have been saying all along.

The racer/sanctioning body/manufacturers tensions will never be resolved by any technology, because each group has its own ends, and they only slightly overlap.

Mvcrash 05-21-16 06:21 AM


Originally Posted by 2 Piece (Post 18766776)
I thought the limit on stopping power on a bicycle was the tires??

The friction limits on a roadway are related to the type of material used to build the road surface. Different roads have different drag factors (coefficient of friction adjusted for super elevation).


Originally Posted by Flinstone (Post 18766824)
On road bikes aboslutely not. You cannot lock up a front wheel on smooth dry pavement.



I used to think that as well until I observed a gentleman ride a motorcycle and bicycle and lock up the front wheel on both. The front lock-up on the bicycle caused the tire to wash out and he fell. On the motorcycle, since the C of G was much lower, he was able to stop safely. The point is that it can be done, but you will most likely crash.




Originally Posted by SpeshulEd (Post 18766912)
Yeah you can. Try harder.

You might not want to lock up the front wheel or else you'll have to deal with the impending doom of flying over the handlebars, but you can totally lock the front wheel.


Depending on where your weight on the bike is located. C of G is important. IE: Ladies have a lower C of G t due to their body type. Some men do as well J



Originally Posted by 2 Piece (Post 18766951)
Well your equations are all good if you lived in a perfect world, moot if you do not. What is the coefficients on wet asphault or wet concrete? What about cobble stones? Is the concrete textured or is it worn smooth? Is the asphalt worn as well? Physics is kind of a neat science, but not always applicable. Bumble bees should not fly, but they do.


Physics is always applicable.
http://www.livescience.com/33075-how-bees-fly.html



Originally Posted by Flinstone (Post 18768217)
And it should be fairly obvious that cars (even most SUV's) have a MUCH higher endo limit, allowing one to take advantage of much higher deceleration rates. They also have MUCH more mass meaning the force required to reach 0.6 g, F= m*0.6g is MUCH larger. There is no comparisson. For cars the absolute limit in ideal conditions absolutely is the tire friction, which is closer to 1g than 0.6 g in good tires.


The argument there though also isn't about increased stopping force. It's about better control and better fade etc. Like I said, I'm open to that kind of argument, but just saying "they work better on cars" is a silly diversion. It's an entirely different situation. Cars don't even have rim brakes to compare to.



Cars rarely generate 1g of stopping due to the frictional limits of the roadways, not the tires. I have personally tested very expensive sports cars with on board instrumentation have only been able to get one car, with the ABS turned off near 1G.

Mvcrash 05-21-16 06:27 AM

And this is just cool

Video shows how bumblebees fly: The creatures' muscles oscillate 'spontaneously' | Daily Mail Online

rydabent 05-21-16 06:57 AM


Originally Posted by Maelochs (Post 18784164)
No dude. I am saying---and it is a fact---that UCI never wanted discs and wanted an excuse to ban them. When Ventoso Falsely Claimed to have been cut by a disc, UCI had the ban ready and written and issued in a few hours.

And when the FACTS came out, that Nobody had been cut by a disc, UCI had to withdraw the ban.

Those are the facts. You know them, you choose to ignore them, and quote information based on lies and bias.

Your choice.

So it appears that the UCI lied to try to keep cycling and bikes in the dark ages of 1895. This doesnt suprise me!!!!!

If aviation followed UCI rules, we would still be flying biplanes with fabric covered wings!!!!

Retro Grouch 05-21-16 08:18 AM


Originally Posted by Mobile 155 (Post 18784906)
You know guys this has been fun but we will have the answer one way or the other by the end of this racing season. At least we will have the answer for a season or two. Then the ones that guessed correctly can come back and say I told you so. But until then we are all guessing to motives and wants of people we hardly know.

I can wait.


Originally Posted by BlazingPedals (Post 18784779)

Yeah. Brakes are over rated anyway. All they do is slow you down.


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