[Closed] Road Bike Disk Rotors....... AGAIN

If you need the differences between road racing and mtbing (racing or otherwise) explaining to you, there really is no point in having any discussion.

Do enlighten me then?

Why is it that MTB'ers Don't seem to suffer from burns then?

Cos 200 of them don't ride in a closely packed bunch at up to 40 mph.

If you need the differences between road racing and mtbing (racing or otherwise) explaining to you, there really is no point in having any discussion.

Indeed. One usually has relatively low speed crashes. The other involves people sliding along tarmac at 40mph, crashing in to telegraph poles on the side of a mountain, piling in to the back of a motorbike, getting sideswiped by a team car, smashing in to a bollard on the lead out of a sprint, that sort of stuff.

Still, discs are lethal. Let's keep our focus on that. Ban them.

At 40mph, no one is braking so no chance of a burn.

I cant fathom it. I see the picture and I'm not calling this bloke a liar but,but... It doesn't compute. What's he been doing to do this to himself? he can't have been using this in a race as they are still banned??

It's an established technology. It's 20 years+ now in MTB. And The 'but MTB/road are different' just doesn't wash anymore. It's been used in cross for 3 years now. Pro level cross is full of packriding and high speeds and crashes. No one has moaned. No one had been cut or burnt. they have just got on with it.

CX riders are hard. While they are racing in the mud and snow the roadies fly south for training camps. There's the difference. 😉

So the danger element are the riders then? The numbers involved and the street furniture and not the Disk itself?
You would think being a Pro cyclist would involve NOT braking instead theres that much going on that their disks get red hot? seems strange to me but not you it seems.
I just wondered how falling off a Road bike was any different to falling off any other kind of a bike?

No discs here. They all look just fine.

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I can only imagine the scenes of LITERAL DECAPITATION if they'd been using discs. Discs are worse than Hitler. Ban them.

Dunno for sure but...

Road bikes are faster = more kinetic energy = more energy into disc = hotter disc

There was definitely some talk when discs first appeared on the road about there being more heat dissipation issues than in MTB.

As for the whole pro cyclists not braking thing. They do brake, quite a lot.

Oh and Sam Bewley has almost certainly ridden several MTBs with discs a lot. HIs brother rented me one in Rotorua once.

Who ever thought that reliable, controllable, powerful braking systems would cause so much fear.

I understand the concerns over discs in road races, it [i]could[/i] be another potential source of injury, but I can't figure out why the trial was stopped after the claimed injury caused by a disc where no disc brake bikes were involved. The UCI should have fronted him up on that.

I guess the risk of serious injury is actually low, similar to the blades of ice skates in ice hockey. But when it goes wrong, it can go spectacularly wrong.

Flashheart, They're just piffling flesh wounds though arent they, i mean theres no bones piercing the skin or gaping wounds, you would expect a bit of road rash if you came off a bike on Tarmac, not sure about the barbed wire fence lacerations though, that could smart a bit. what i wondered was is the bike and rider seperating differently?

is sliding down Tarmac with the bike increasing the exposure to a disk as oposed to just being spat off and face planting?

Cos 200 of them don't ride in a closely packed bunch at up to 40 mph.

Oh, if you're asking about that particular crash - I'd say that almost certainly wasn't from his own bike.

There's a much bigger chance of you getting involved with someone else's bike if you crash in a bunch. I'm guessing he was on a group ride and another ride had discs.

They're just piffling flesh wounds though arent they

They're far less serious than the dreadful, almost fatal injuries in the OP. I mean, look, his arm has nearly come off. More proof that discs are lethal.

Ventoso can hardly bring himself to go near a bike after that incident where the rogue disc brake sprang up from the other side of a bike and viciously assaulted him. I hear he's pressing charges, and rightly so.

Discs are worse than Pol Pot.

How about we keep the disks and ban road bikes?

CFH we know your position on discs on road bikes and posting a load of irrelevant crashes really doesn't move the debate on. Yes the ate some awful crashes in road racing but they tell you nothing on whether discs are safe or not.

If someone in a bunch crashes at 40mph the riders behind will brake and some will fall on others. Will this result in this kind of injury I've no idea, but we shouldn't dismiss it out of hand, instead we should go test and find out.

Discs need not be banned, but we do have to consider whether the risks are properly mitigated and meet ALARP.

and people laughed when we made covers for discs for a Pro team

im going to patent that

oh wait a minute

what next electric motors

oh wait a minute

I think our MX cousins solved the burns issue.

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Edit ooh, look, a polo bike carbon disc guard.

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posting a load of irrelevant crashes really doesn't move the debate on. Yes the are some awful crashes in road racing but they tell you nothing on whether discs are safe or not.

Exactly. Those crashes are irrelevant. The real danger is discs. Road rash is a myth. There are no bollards. That barbed wire was really comfy. Better braking won't change anything, so let's ban it.

Pisstaking mode off - It's entirely relevant. The safety concerns about discs are blown out of all proportion when compared to the very real risks of racing a bike on a road clad in little more than a smattering of lycra. Down mountains, through towns, through crowds of people, across cobbles, with barely controlled team cars and motos in attendance.

In the general scheme of things, road racing is dangerous, discs aren't.

I'd rather ride with that burn than any of those to be fair, except Cav, he can keep his, he's always falling off any way so best not to give him Disks as those around him would be safer,

Yes i can see 200 riders being a tad problematic, but as suggested above its not often that theyre all together doing 40+ especially with red hot brakes, except behind the commisairs car, with cold brakes. And a good long slide often occurs on a downhill road section where the pack would be strung out, and the barbed wire, clearly that was the trees fault for not moving out of the roadside,

So basically this guys done a superman off his bike and managed to burn himself but reamain otherwise unscathed.

And the Brake disk fender, mostly used in MX to keep mud off the braking surface. i can see how this would help against 3rd degree burns of a branding iron but if thats what they've come up with theres little wonder the Pro Peleton aren't embracing the new found love affair for Disks.

I think our MX cousins solved the burns issue.

Edit ooh, look, a polo bike carbon disc guard.

The buggers, who knew such a simple solution could alleviate all this bollocks

The buggers, who knew such a simple solution could alleviate all this bollocks

Yeah, but...Tradition. Aesthetics. Chapeau. Bidon. Beaucoup de mots français.

There's NO nipple ender on that cable end, That could have some buggers eye out!

There is a problem with guards though.

If we cover disc rotors, we will have to install these.
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I'm waiting for the brake disc to be relocated into some other existing part of the bike, perhaps it could be a much bigger circumference and central to the bike frame allowing for lighter frame and simpler caliper.

Come on guys, get your development hats on.

I'm waiting for the brake disc to be relocated into some other existing part of the bike, perhaps it could be a much bigger circumference and central to the bike frame allowing for lighter frame and simpler caliper.

Come on guys, get your development hats on.

We tried that in the last millennium. What worked better was a really powerful, yet highly controllable braking system tucked up out of the mud, grit, salt etc. Far more effective. Also, it allowed us to make a stronger, lighter wheel, as the wheel wasn't compromised by having to be a braking surface as well. Amazingly, we then discovered that pretty much every other wheeled transport device on the planet was using the same system! Almost like everyone else had developed something better already. If only we'd thought of it before.

mud, grit, salt etc.

I refer you to the second post in this thread.

I refer you to the second post in this thread.

Yep. No mud here.

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Is that Sagan off the front?

Sometimes i think people on this Forum only ride in groups of 200 at 40+MPH in bright Sunshine on silky smooth Gnarmac.

Why The F would some one refuse to comment on a subject because theres a difference in Road v MTB, THEEEENNNNN, it gets quoted further down the thread because somebody never ridden in MUD. On cobbles, in the cold.

Hincapie on the front there, was that the race his steerer snapped? Spot the rider with no helmet as well.

CFH those other crashes aren't relevant because mitigating to make those risks safer is completely different e.g. better moto drivers or less street furniture. They tell you nothing about whether discs are safe or not.

Yep i missed the rider without Helmet, But clocked the external cables, first i thought Sagan, then saw the cables so went young sagan, then thought he was on some retro bike bash. But Your right Dragon.
It does kinda look like his nose though.

And yes, i just think CFH's got a thing for ripped Lycra, Being side swiped by a team car, theres NO disk brake going to take the kinetic energy out of being pinged sideways at 40MPH. We can argue all day long but at the end of the day there's nothing we can do to sped up or slow down the advent of DISK Brakes to the modern day Pro Peloton, Those guys seem to be conducting their own orchestra on that one, i dare say that any cut, graze or camping stove burn in the off season will be attributed to them there pesky disk brakes,

The big question here is why exactly is CFH so bothered about whether the pros are using discs? Why is anybody so bothered? Apart of course from the pros themselves, but apparently we should just dismiss their views as scaremongering.

dragon - Member

Cos 200 of them don't ride in a closely packed bunch at up to 40 mph.

Also, you have to bear in mind that in road racing, discs can cause injuries at great distances, as with Ventoso.

Yeah, but...Tradition. Aesthetics. Chapeau. Bidon. Beaucoup de mots français.

😆

CFH in actually being funny shocker. 😀

Chapeau.

The whole debacle could be quickly and easily put to bed, the solution is obviously... Drum brakes!

No more deadly, "super heated", "razor sharp" rotors, no more "rim eroding", "useless in the wet" calipers...

Good old drum brakes, the barely ever mentioned, odd cousin to all the other brakes... They'd also be excellent for hiding a motor in too...

I'm guessing that the road pro's see disks as something being introduced on their race day bikes for marketing purposes rather than something they need hence they are pushing back against them. Disks are advantagous for the common man who doesn't have a pro mechanic to clean his rims and pads after every ride and who overheats his tyres on the downhills because he is fat and going much slower on roads are not shut to traffic.

I'm guessing that the road pro's see disks as something being introduced on their race day bikes for marketing purposes rather than something they need hence they are pushing back against them.

Looks that way and fair enough. Same reason Boost or 650B gets grief.

I'm not sure pro racing is quite as influential over bike sales now. It is, but less than it used to be and that trend will continue. Let them race rim brakes if they prefer. If I wanted a race bike I'd rather buy something that's actually what pros want, discs will still sell and the brands can have race and 'Alpine gran fondo' etc specs. More options and stuff to buy, seems to be the aim anyway.

Can I call on the UCI to ban chainrings for me please?
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I don't see why mfrs don't just make frames & forks with mounts for discs and rim brakes. People can then shut up and run what they like and change as they "need"; pros can keep rim braking for races and others can have discs to keep them "safer" in traffic etc.

tout le monde heureux, as they say chez flashheart

As said up there somewhere, I'd like to know how that rider burnt his arm - can only imagine a pile up at the bottom of a long descent unless rotors cool a lot slower than I thought

(I can picture the new hot swappable dura-ace hydraulic rim brake already - a brave new standard for the bike (marketing) industry)

I think our MX cousins solved the burns issue.

Yeah, they did. Mainly with clothing.

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It's lycra thats the problem here, not disc brakes.....
😀

twisty - Member

I'm guessing that the road pro's see disks as something being introduced on their race day bikes for marketing purposes rather than something they need

Seems reasonable. In which case, they need to remember that they are human billboards, the entire reason pro cycling exists as a sport is to sell bikes to fat accountants, and to promote innovation in technology and pharmaceuticals.

The big question here is why exactly is CFH so bothered about whether the pros are using discs? Why is anybody so bothered? Apart of course from the pros themselves, but apparently we should just dismiss their views as scaremongering.

This. I don't race, along with 99% of other road riders, so what the pros use or don't use is of little relevance to me.