Front Brakes noise (video)

crazyinp
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Front Brakes noise (video)

Post by crazyinp » Sun Nov 01, 2015 12:05 am

New to this board, I am so glad I found it!

I have really annoying noise coming from the front brakes. It is very noticeable in low speed and when you move the bike around during parking. I can't really hear it during riding, but honestly who could with bike being kinda loud :) I have made video, hopefully someone might had this issue before. Dealer is super busy, so the earliest appointment is Nov 20th.

https://www.youtube.com/watch?v=PQYB4wtW2kQ
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Gary
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Re: Front Brakes noise (video)

Post by Gary » Sun Nov 01, 2015 2:31 am

I have the exact same sound from my brakes, which has been bothering me. I only notice it when coming to a stop, or when parking. Unfortunately I don't know the reason. But a couple of questions, which may help identify the problem:

Is your bike or pads new?

Has it been raining?

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Re: Front Brakes noise (video)

Post by crazyinp » Sun Nov 01, 2015 2:35 am

I bought the bike used with 3K miles on it. I spoke with the previous owner, and he told me that the noise was there before but he never bother to go to the dealer to get it look at, since it does brake just fine. I will have the dealer check it out, planing to sand the rotors and see if that will help.
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Re: Front Brakes noise (video)

Post by Markey » Sun Nov 01, 2015 9:03 am

Mine was like that from new, reported to the dealer and said they were all like it and normal ....WTF!

Told me he'd replace the rotors if it bothered me but would be the same ??

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Re: Front Brakes noise (video)

Post by crazyinp » Sun Nov 01, 2015 4:16 pm

Markey wrote:Mine was like that from new, reported to the dealer and said they were all like it and normal ....WTF!

Told me he'd replace the rotors if it bothered me but would be the same ??
That is unacceptable. I won't let the dealer get away with it. There is something which is not normal, had enough bikes to know that is not normal.
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Re: Front Brakes noise (video)

Post by Rangoonruns » Sun Nov 01, 2015 6:26 pm

Sounds like whale song to me !
It's dragging pads and would probably wear off as long as your pistons are retracting properly
You could get some brake clean and give them a good spray to clean out any debris and dust in there
Try doing a few emergency stops using lots of front brake it may clean / clear the annoying whine
Good luck and if this fails plague the dealer that took your cash
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Re: Front Brakes noise (video)

Post by Gary » Sun Nov 01, 2015 7:42 pm

I have it on my new bike as well. It's been rainy here the past week? Could it be the that? I haven't noticed it earlier...

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Re: Front Brakes noise (video)

Post by Danish-Rider » Sun Nov 01, 2015 9:38 pm

Mine does the same thing, it has always done that.
It goes away after a few revolutions of the wheel, and the brakes work fine and there is no unusual wear.
I think it is a very very small run-out on the discs combined with tight fitting brakes.
Thanks

Peter :-)

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Re: Front Brakes noise (video)

Post by crazyinp » Mon Nov 02, 2015 1:29 am

My bet is on rotors issue, It does it only at certain position not during whole revolution, which seems like rotor run-out issue. It is annoying the hell out of me.
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Re: Front Brakes noise (video)

Post by bjones » Mon Nov 02, 2015 8:11 pm

On the subject of run-out. What is an acceptable amount of run-out? I have the exact same symptoms as shown in the video as well as a very annoying low speed pulsing. I measured the run-out and found that the right rotor is perfect while the left is showing 10 thousands of an inch of run-out for about 1/3 if its circumference. When the portion of the rotor showing excess run-out hits the caliper, it howls as shown.

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Re: Front Brakes noise (video)

Post by Gary » Mon Nov 02, 2015 10:39 pm

Significant run out would cause pulsing or vibration under braking though, no? My brakes are smooth and without vibration when used. It's just at walking speeds I experience the sound in the video, sometimes. I'm still thinking that it might be uneven surface rust since it's been pretty rainy here recently.

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Re: Front Brakes noise (video)

Post by crazyinp » Tue Nov 03, 2015 12:12 am

I would assume if is really small run-out might be fine. If is rust, why would do it only at certain position not during full resolution?
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Re: Front Brakes noise (video)

Post by Bootworks » Tue Nov 03, 2015 4:23 pm

My runout symptoms were a 'grab and release' at parking lot speeds, no noise. My dealer ended up exchanging the rotors under warranty, although it took a couple of calls because KTM considers the rotors a consumable item.

Ended up installing BrakeTech Axis iron rotors -a significant improvement- and shelving the new OEM replacement rotors.

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Re: Front Brakes noise (video)

Post by crazyinp » Thu Nov 05, 2015 5:59 am

I scheduled appointment with the local dealer so I will have them to take a look what is going on. It is kinda annoying....
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Re: Front Brakes noise (video)

Post by Akalnoky » Sat Nov 07, 2015 5:08 am

You have warped rotors, it's a common fault - mine have been replaced under warranty.

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Re: Front Brakes noise (video)

Post by crazyinp » Mon Nov 09, 2015 4:46 am

Akalnoky wrote:You have warped rotors, it's a common fault - mine have been replaced under warranty.
Yeah, that is what I think, especially because it is not during the whole wheel rotation but just in that spot... I can't get earlier appointment than 20th. So will update as soon as I go there.
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Re: Front Brakes noise (video)

Post by Hitman » Tue Nov 17, 2015 5:22 am

Have exactly the same issue Dealer says that it is not uncommon.... No fix suggested as they tried replacing the rotors on another 1290 and nothing changed. Don't really care as breaking and riding is not affected.... Only noticeable in the garage when the bike is being moved around.....another little quirky KTM thing I guess.
Life is short.... no one is irreplaceable....everyone is disposable..... work hard....enjoy life.....

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Re: Front Brakes noise (video)

Post by crazyinp » Tue Nov 17, 2015 5:50 am

So the dealer just said , sorry we can't fix it, and that is normal? That won't fly with me. When you spent that much money on a bike, I would expect way more.
Hitman wrote:Have exactly the same issue Dealer says that it is not uncommon.... No fix suggested as they tried replacing the rotors on another 1290 and nothing changed. Don't really care as breaking and riding is not affected.... Only noticeable in the garage when the bike is being moved around.....another little quirky KTM thing I guess.
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Re: Front Brakes noise (video)

Post by ilmothefinn » Tue Nov 17, 2015 11:32 am

Have just the same sound on both bikes when pushing them into carage after riding... But when they have cooled down there is nothing, or maybe just small whisper of pads touching discs. Bikes are on paddock stands, front and rear... So, I thought that when riding, the brakes get hot but also get cooled down with air. And when you come home the cooling effect stops, heat enlargens parts, tolerances become smaller so that a squealing contact is made... The discs seem not bo be warped there is almost no change of resistance & brakes in use => no pulsating...

Our older bikes didn't have this, or at least I remember so - but they had maybe larger gap between disc and pads. And that means slower reaction of brakes in use. So I quess better brakes = smaller tolerances. That means also (automatically?) more brake care, too.
Do like the others do, you end up being like the others, so... Well, seems to be a lot of KTM riders around. Well, not around here but around the world... :D

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Re: Front Brakes noise (video)

Post by crazyinp » Tue Nov 17, 2015 2:56 pm

What bikes are you talking? I have Ducati with same Brembo brake size, '08 KTM Superduke 990R with the same size Brembo size and I don't have that problem. Has to be something with '14-'15 Superduke Brembo setup. So it is definitely not with every bike, but jus this one.
ilmothefinn wrote:Have just the same sound on both bikes when pushing them into carage after riding... But when they have cooled down there is nothing, or maybe just small whisper of pads touching discs. Bikes are on paddock stands, front and rear... So, I thought that when riding, the brakes get hot but also get cooled down with air. And when you come home the cooling effect stops, heat enlargens parts, tolerances become smaller so that a squealing contact is made... The discs seem not bo be warped there is almost no change of resistance & brakes in use => no pulsating...

Our older bikes didn't have this, or at least I remember so - but they had maybe larger gap between disc and pads. And that means slower reaction of brakes in use. So I quess better brakes = smaller tolerances. That means also (automatically?) more brake care, too.
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