Open letter by Vents regarding disc brakes **Graphic photos**

[Patchelicious]

In the same vein:

 

http://cyclingtips.com/2016/04/opinion-how-the-uci-and-manufacturers-collectively-bungled-the-disc-brake-trial/

I like that article, its a practive approach to a ostroch head in the sand situation.

 

Like I have said, if the guys wanted disks and it was truly about safety they would be calling for rounded edges, plastic covers etc... but the current generation of pros dont seem to want disks, therefore a outright and blanket ban seems to be the approach.

[Headshot]

And the UCI has decided to allow further tests of discs in the peleton... and there is a rumour that  a forensic doctor has determined that Ventoso's injuries were caused by a chain ring not a disc. 

 

Wonder how much manufacturer pressure was brought to bear?

[Patchelicious]

And the UCI has decided to allow further tests of discs in the peleton... and there is a rumour that  a forensic doctor has determined that Ventoso's injuries were caused by a chain ring not a disc. 

 

Wonder how much manufacturer pressure was brought to bear?

Again, if only they were this worried about real threats, like motocycles.....

[raptor-22]

I think the elephant in the room is the riders wanting a seat at the decision making table rather than just being allowed in the room to be flies on the wall.

 

Bring them into the decision making process and they'll be more pliable, ....particularly wrt to the matter of disc brakes

[Headshot]

I think the elephant in the room is the riders wanting a seat at the decision making table rather than just being allowed in the room to be flies on the wall.

 

Bring them into the decision making process and they'll be more pliable, ....particularly wrt to the matter of disc brakes

Bring us in or we will slash ourselves with chainrings and spokes and say it was those disc things, kind of thing?

[raptor-22]

I think you need to take some calmettes...

[Paul Ruinaard]

You need an aha moment. Like in Formula 1 when a car came with wings in the late sixties the drivers hated it and they were banned in the early seventies (they were stupidly dangerous). But all tech in rev 1.0 is like that .

 

It isnt really going to come in the Classics which are pretty flat. You need conditions where discs have an advantage 

 

The real Aha will come in a descent off a large mountain where someone riding discs with a little bit of skill is able to carry their braking so late that they just run away from a field or close a gap so quickly that it cant be down to anything else. Or on a wet day someone is able to negate an advantage or get a gap because they have brakes and the others don't, so they are just so superior.  It will change the playing field.

 

At that point everyone shuts up cause they want to win.

 

Until then - blah blah blah

[splat]

And the UCI has decided to allow further tests of discs in the peleton... and there is a rumour that  a forensic doctor has determined that Ventoso's injuries were caused by a chain ring not a disc. 

 

Wonder how much manufacturer pressure was brought to bear?

 

'the trial is due to resume next month, following a conference call between the UCI and members of trade body the World Federation of the Sporting Goods Industry (WFSGI).

 

The website says that a doctor engaged by the WFSGI believes that Ventoso’s injury was most likely to have been due to a chainring.

 

The resumption of the testing of disc brakes in the peloton will see at least one safety modification, however, according to the Cycling Tips report, with rounding of the rotor edges aimed at minimising the risk of cuts."

 

I am sure the Dr wasn't at all biased...

[raptor-22]

You need an aha moment. Like in Formula 1 when a car came with wings in the late sixties the drivers hated it and they were banned in the early seventies (they were stupidly dangerous). But all tech in rev 1.0 is like that .

 

It isnt really going to come in the Classics which are pretty flat. You need conditions where discs have an advantage 

 

The real Aha will come in a descent off a large mountain where someone riding discs with a little bit of skill is able to carry their braking so late that they just run away from a field or close a gap so quickly that it cant be down to anything else. Or on a wet day someone is able to negate an advantage or get a gap because they have brakes and the others don't, so they are just so superior.  It will change the playing field.

 

At that point everyone shuts up cause they want to win.

 

Until then - blah blah blah

 

 

the ah ha moment will come when tyres are able to deliver the level of grip required for any brake to be more effective. Rim brakes have more than enough braking power and have far superior braking torque than a disc since the application of force is further from the centre of rotation.

the advantage of discs is that the braking surface does not deform or strain  parallel to the brake force application like a rim brake.

But we've not reached that limit yet because the tyres don't offer enough grip.

[Paul Ruinaard]

the ah ha moment will come when tyres are able to deliver the level of grip required for any brake to be more effective. Rim brakes have more than enough braking power and have far superior braking torque than a disc since the application of force is further from the centre of rotation.

the advantage of discs is that the braking surface does not deform or strain  parallel to the brake force application like a rim brake.

But we've not reached that limit yet because the tyres don't offer enough grip.

Agreed....

 

So we now build treads which are disc specific. Like Formula 1 was able to do to take advantage of wings as they had so much more grip in the corners.

 

Sorry to keep using those analogies, but you are so right - you need disc specific rims and tyres cause as per my other string about braking and overtaking in MTB, being last on the brakes doesn't win you a TdF.

 

So it has to be something else or a combination of things that changes the game

[Eldron]

I still think having some riders on discs and some on callipers is more dangerous than the discs....

[Patchelicious]

Agreed....

 

So we now build treads which are disc specific. Like Formula 1 was able to do to take advantage of wings as they had so much more grip in the corners.

 

Sorry to keep using those analogies, but you are so right - you need disc specific rims and tyres cause as per my other string about braking and overtaking in MTB, being last on the brakes doesn't win you a TdF.

 

So it has to be something else or a combination of things that changes the game

Many a race has been won on the descent.

 

From some of the articles that I have seen this is where the better modulation of disks, rather than the sheer stopping force, has allowed guys to descend faster than on carbon rims.

[raptor-22]

Many a race has been won on the descent.

 

From some of the articles that I have seen this is where the better modulation of disks, rather than the sheer stopping force, has allowed guys to descend faster than on carbon rims.

 

 

and therein lies the pull factor

[Ramrod]

And the UCI has decided to allow further tests of discs in the peleton... and there is a rumour that  a forensic doctor has determined that Ventoso's injuries were caused by a chain ring not a disc. 

 

Wonder how much manufacturer pressure was brought to bear?

I am on my knees praying they allow them in future otherwise I have a very expensive garage ornament!

[Patchelicious]

I am on my knees praying they allow them in future otherwise I have a very expensive garage ornament!

Just make sure you pray to the right god, else the god in charge of the UCI might just punish you.

[Headshot]

the ah ha moment will come when tyres are able to deliver the level of grip required for any brake to be more effective. Rim brakes have more than enough braking power and have far superior braking torque than a disc since the application of force is further from the centre of rotation.

the advantage of discs is that the braking surface does not deform or strain  parallel to the brake force application like a rim brake.

But we've not reached that limit yet because the tyres don't offer enough grip.

Its not all about braking power. MTB's may have better grip but the surface they are used on often doesn't. I think discs have far better modulation which means more accurate brake control.