December 22, 2014 Login  


meanwhile on the road disc brake front
Last Post 06/04/2014 09:45 PM by Mike Shea. 58 Replies.
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Orange Crush

Posts:1251

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04/01/2014 03:52 PM
from reading the article it sounds to me that it would be an all or nothing transition. I.e. if they are going to do this, then the entire peleton would be required to ride discs conforming to a uniform standard.

Maybe I am misreading.
Ride On

Posts:454

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04/26/2014 10:58 AM
I was thinking. What are the chances that disc brakes on road bikes lead to more serious injuries ?

My thinking is with disc brakes in a panic stop, is the rider more likely to be thrown over the front in a flip than with rim brakes? Landing flat on your back in a bike flip hurts like a SOB. Disc brakes are suppose to make things safer in wet riding conditions. I get that. In dry conditions are riders going to grab to much front brake ? I know I know it's up to the rider to control what he/she does but disc brakes have made that "skill" level go up. Disc brake bikes will get marketed to riders with low skill level as being safer to tide.

Will be interesting to see if some company gets sued because a rider flipped over the front of a bike with disc brakes. If you can sue a bike company over not closing your skewer I figure it's only a meter of time.
Oldfart

Posts:490

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04/26/2014 11:35 AM
Well designed disc brakes are not grabby and modulate really well. I can see someone doing an endo if they are new to decent brakes if they had weak brakes before.
longslowdistance

Posts:745

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04/26/2014 02:06 PM
agree w/OF. faceplants are LESS likely with better brakes. Disc brakes are just plain better in terms of braking performance. Whether the weight and aero penalties will be justified for road racing remains to be seen.
Master50

Posts:252

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04/27/2014 01:09 PM
Posted By Ride On on 04/26/2014 10:58 AM
I was thinking. What are the chances that disc brakes on road bikes lead to more serious injuries ?

My thinking is with disc brakes in a panic stop, is the rider more likely to be thrown over the front in a flip than with rim brakes? Landing flat on your back in a bike flip hurts like a SOB. Disc brakes are suppose to make things safer in wet riding conditions. I get that. In dry conditions are riders going to grab to much front brake ? I know I know it's up to the rider to control what he/she does but disc brakes have made that "skill" level go up. Disc brake bikes will get marketed to riders with low skill level as being safer to tide.

Will be interesting to see if some company gets sued because a rider flipped over the front of a bike with disc brakes. If you can sue a bike company over not closing your skewer I figure it's only a meter of time.


plenty of rim brakes are powerful enough to flip you over the bars. My neighbour flipped over her bars with canto brakes on her first ride as an adult returning to cycling. She said she was surprised at how powerful the brakes were. In terms of ultimate stopping power many front brakes are as powerful as disks. In fact there is no need for more power only better modulation which is really what disks do reliably.
KootnaMoots

Posts:18

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04/27/2014 01:25 PM
TDF, rider has a flat, rider removes wheel, Support shows up with wheel, in the panic rider or support bumps the brake lever moving the pads out, can't install wheel because the disk can't be wedged into the caliper, screw driver or whatever is in/on the support vehicle, finally get wheel installed but brake is dragging, pump brake lever and away we go. A 20 sec wheel change now becomes a minute plus with a really frustrated rider. Depending where in the race this occurs it could be critical. Don't ask me how I know
Oldfart

Posts:490

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04/27/2014 01:48 PM
It takes more than bump to push the brakes. You need to squeeze the lever fully and usually more than once to make it really bad. But I could see it happening. I think this points to a different thing. Tires that won't flat so readily. Oh wait, we have that. Tubeless with a little sealant. Just not that light yet.
KootnaMoots

Posts:18

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04/27/2014 01:56 PM
Don't agree...The hyds on my Giant Trance will come out with the wheel off quite easily. If the handle bars swing and bump your shoulder or whatever they come out enough where the disk will be really difficult without some prying. Brake lever moves pretty easy on my Trance.
Koot
Master50

Posts:252

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04/27/2014 03:29 PM
We go to bike changes and the wheel is changed at the car. Transferring bottle will be the hardest part to deal with.
KootnaMoots

Posts:18

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04/27/2014 09:32 PM
That's OK if the team car is close but if it is stuck in the back or front of the peloton and all you have is the Mavic support m/c you have a different situation.
longslowdistance

Posts:745

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04/28/2014 04:44 AM
Kootna has a point. And ISO disc spacing needs to be truly identical between brands, as it hasn't always been so.
Master50

Posts:252

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04/29/2014 12:44 AM
Posted By Jerry Russell on 04/27/2014 09:32 PM
That's OK if the team car is close but if it is stuck in the back or front of the peloton and all you have is the Mavic support m/c you have a different situation.


In that case a slow wheel change is still faster. Moot.
Hoshie

Posts:123

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04/29/2014 10:18 PM
You guys know that disk brakes stop better - yes?

j
Keith Richards

Posts:759

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04/30/2014 03:05 PM
Yes, but keep in mind the final limiting factor in braking is not the brakes but the contact patch. Once you have the ability to lock up your wheels with one finger, what's the point of having more?
----- It is his word versus ours. We like our word. We like where we stand and we like our credibility."--Lance Armstrong.
79pmooney

Posts:1192

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04/30/2014 03:20 PM
Contact patch or simple physics. Like decelerate faster than a certain amount and you ARE going over the handlebars. And at that maximum deceleration, the rear brake is doing zero because there is no weight on the rear tire. (Fix gears give you instant information on the status of that rear tire.)

Ben
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