High speed front brake vibration issue - Kawasaki ZX-10R.net
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post #1 of 31 Old 09-26-2010, 07:33 PM Thread Starter
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High speed front brake vibration issue

You all are the experts, so I thought I would ask before taking to the dealer or shop.

I get rapid vibration in the front brake lever when braking at freeway speeds, 55mph or higher - particularly when I brake hard. It used to be only higher speeds (over 65), so I think it's progressively worse.

Cars will do this when they need new rotors, which is what I think it might be. I don't believe this is tire balance, since this is the second set of tires I've noticed this on.

The '08 is still under warranty but I don't think they cover rotors at 11,000 miles - or will they?

Thanks in advance -
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post #2 of 31 Old 09-26-2010, 07:50 PM
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thought it was unlimited miles 12 months?
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post #3 of 31 Old 09-26-2010, 07:55 PM
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thought it was unlimited miles 12 months?
Even so, I doubt they will cover the rotors.
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post #4 of 31 Old 09-26-2010, 07:57 PM
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Check your head bearing!
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post #5 of 31 Old 09-26-2010, 07:59 PM
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Quote:
Originally Posted by STurner View Post
You all are the experts, so I thought I would ask before taking to the dealer or shop.

I get rapid vibration in the front brake lever when braking at freeway speeds, 55mph or higher - particularly when I brake hard. It used to be only higher speeds (over 65), so I think it's progressively worse.

Cars will do this when they need new rotors, which is what I think it might be. I don't believe this is tire balance, since this is the second set of tires I've noticed this on.

The '08 is still under warranty but I don't think they cover rotors at 11,000 miles - or will they?

Thanks in advance -

Your rotors may be warped, but I would pull the calipers off and clean the pistons and guide pins really good first.
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post #6 of 31 Old 09-26-2010, 08:07 PM Thread Starter
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thought it was unlimited miles 12 months?
I have an extended warranty - 3 years right now, and the dealer is offering another 4 on top of the (7 years) for another $600. I don't have $600 to drop but that shows how reliable these toys are..
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post #7 of 31 Old 09-26-2010, 08:32 PM
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I would say balance of the tires but if its when you brake i'd say rotors but i've got so many miles on my stock rotors so I dont know what to say. You go through a lot of hot and cold/wet cycles? ride in ran maybe?

head bearing is a poss BUT if its a violent shake i'd rule that one out especially at 11k on a 08. Mine was fine on my 05 with 23k only reason why it was bad was due to too much torque from my scotts damper being put on. so i'll go back to saying balance...I had this same problem recently with a retard shop!
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post #8 of 31 Old 09-26-2010, 08:45 PM Thread Starter
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I would say balance of the tires but if its when you brake i'd say rotors but i've got so many miles on my stock rotors so I dont know what to say. You go through a lot of hot and cold/wet cycles? ride in ran maybe?

head bearing is a poss BUT if its a violent shake i'd rule that one out especially at 11k on a 08. Mine was fine on my 05 with 23k only reason why it was bad was due to too much torque from my scotts damper being put on. so i'll go back to saying balance...I had this same problem recently with a retard shop!
Thanks for all the advice - I think I'll get the front wheel re-balanced first. If that doesn't solve it, call the dealer and see if warped rotors are covered and go from there.
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post #9 of 31 Old 09-28-2010, 11:10 PM
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Brake pad build up can cause a similar symptom as warped rotors. The residue doesn't build up perfectly even, and also will slip-grab-slip-grab causing a pulsing/vibration - a similar symptom of if the pads are just glazed over which is possible.

If the rotors are not warped then new pads, brake cleaner, and a Scotch-brite pad would be step one, and bead blasting the rotors would be great, if possible.

Headstock bearings, as mentioned, are also another source of mysterious vibration under a load.

Last edited by Cocky Rooster; 09-28-2010 at 11:14 PM.
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post #10 of 31 Old 09-28-2010, 11:59 PM
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Tire/ wheel balance.
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