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would a bent rotor cause brake to malfunction???

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Old Dec 13, 2006 | 09:08 PM
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Default would a bent rotor cause brake to malfunction???

my front brakes are not functioning right due to rotors not straight. reason i asked is that after my little accident my fronks brakes are to soft and causing me to pump it couple of times in order to feel it. what i notice about it is that my rotors are bent by a little so is that the cause or what is it...

any suggestion...
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Old Dec 13, 2006 | 09:35 PM
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Default Re: would a bent rotor cause brake to malfunction??? (steve1320)

u check the lines? calipers?.......see if they are working properly? try checking over the brake system. U might have a leak in the lines maybe, good luck
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Old Dec 14, 2006 | 12:08 AM
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Default Re: would a bent rotor cause brake to malfunction??? (mark_is_gay)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mark_is_gay &raquo;</TD></TR><TR><TD CLASS="quote">u check the lines? calipers?.......see if they are working properly? try checking over the brake system. U might have a leak in the lines maybe, good luck </TD></TR></TABLE>

if you have to pump your front brake in order to work you might have air in the lines, you need to bleed the system both calipers until you can hold pressure, if it doesn't after bleeding than you have a leak not good, front brake are very important is about 80% of your braking power....
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Old Dec 14, 2006 | 04:50 AM
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Default Re: would a bent rotor cause brake to malfunction??? (steve1320)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by steve1320 &raquo;</TD></TR><TR><TD CLASS="quote">my front brakes are not functioning right due to rotors not straight. reason i asked is that after my little accident my fronks brakes are to soft and causing me to pump it couple of times in order to feel it. what i notice about it is that my rotors are bent by a little so is that the cause or what is it...

any suggestion...</TD></TR></TABLE>

There was a thread on this awhile back but I'm too lazy to search. Basically the warped rotor is pushing the pad away from the rotor when it makes a revolution because the profile is hosed. The pumping is you pushing the pad back against the rotor before you can get any real stopping force. Your only real solution is to replace the bent rotor.
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Old Dec 14, 2006 | 05:01 AM
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Default Re: would a bent rotor cause brake to malfunction??? (Apocalypse)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Apocalypse &raquo;</TD></TR><TR><TD CLASS="quote">Your only real solution is to replace the bent rotor.</TD></TR></TABLE>

Yup, I had the issue, the only resolution was to replace the rotors.
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Old Dec 14, 2006 | 06:57 AM
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Default Re: would a bent rotor cause brake to malfunction??? (LL2009)

i have bleed them already and still have the same results...
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Old Dec 14, 2006 | 06:59 AM
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Default Re: would a bent rotor cause brake to malfunction??? (Apocalypse)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Apocalypse &raquo;</TD></TR><TR><TD CLASS="quote">

There was a thread on this awhile back but I'm too lazy to search. Basically the warped rotor is pushing the pad away from the rotor when it makes a revolution because the profile is hosed. The pumping is you pushing the pad back against the rotor before you can get any real stopping force. Your only real solution is to replace the bent rotor.</TD></TR></TABLE>

yeah thats the only thing that i can think of because if i roll the bike forward while looking at the brake pad and rotor you can actually see a little gap when it comes to the bented part. so i'm just wondering if its the rotor thats causing it or something else...
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Old Dec 14, 2006 | 07:00 AM
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Default Re: would a bent rotor cause brake to malfunction??? (Brian*E30)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Brian*E30 &raquo;</TD></TR><TR><TD CLASS="quote">

Yup, I had the issue, the only resolution was to replace the rotors.</TD></TR></TABLE>

yeah i guess that i'll just changed the rotor because its bent anyway...thanks
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Old Dec 14, 2006 | 07:21 AM
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Default Re: would a bent rotor cause brake to malfunction??? (steve1320)

YES. The uneven surface is pushing the pads back in as the rotors spin. Dangerous. Depending how bad they are you may be able to get them straightened. A local shop charges $30.
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Old Dec 14, 2006 | 07:45 AM
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Default Re: would a bent rotor cause brake to malfunction??? (steve1320)

I would bleed the brakes. Air could have gotten into the system via reservoir when the bike was on its side. Warped/bent rotors tend to make the front end shake.
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Old Dec 14, 2006 | 08:01 AM
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Default Re: would a bent rotor cause brake to malfunction??? (big pete)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by big pete &raquo;</TD></TR><TR><TD CLASS="quote">I would bleed the brakes. Air could have gotten into the system via reservoir when the bike was on its side. Warped/bent rotors tend to make the front end shake.</TD></TR></TABLE>

well i bleed them twice and still same results but the rotor is not bent that bad if u focus really good at it when rolling then u can see it. also my buddy said that a slight bent on a rotor can also cause the brakes to function like that also thanks
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Old Dec 14, 2006 | 09:36 AM
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Default Re: would a bent rotor cause brake to malfunction??? (steve1320)

Who rides around knowing they have bent rotors?!?!
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Old Dec 15, 2006 | 12:57 PM
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Default Re: would a bent rotor cause brake to malfunction??? (Etylorcen)

Yes.
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Old Dec 15, 2006 | 05:04 PM
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Default Re: would a bent rotor cause brake to malfunction??? (Apocalypse)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Apocalypse &raquo;</TD></TR><TR><TD CLASS="quote">

There was a thread on this awhile back but I'm too lazy to search. Basically the warped rotor is pushing the pad away from the rotor when it makes a revolution because the profile is hosed. The pumping is you pushing the pad back against the rotor before you can get any real stopping force. Your only real solution is to replace the bent rotor.</TD></TR></TABLE>

i believe that was my thread. i had the exact same problem. long story short: i rode off and forgot to take off my disc lock. rode about a foot or two and BAM!! next thing i know i'm on my side and my rotor is bent slightly.

i did a little digging and research and found out it has to do with the fact that the piston inside your caliper has to push the pad that much further to your rotor where your rotor is bent to make up for the difference in surface distance. hope that made sense.

heres my thread:
https://honda-tech.com/zerothread?id=1679151
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Old Dec 15, 2006 | 09:25 PM
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Default Re: would a bent rotor cause brake to malfunction??? (AzntaggeR)

yeah true that did little more work on my r1 today and it sure was the rotor... thanks guys
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