Custom Front Brake Pulsating - Help
Thread Starter
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Intermediate
Joined: Jul 2010
Posts: 28
Likes: 0
From: Lawreneburg, IN
Custom Front Brake Pulsating - Help
Brand new RC Components 26" wheel, 13" floating rotor and single PM 6-piston caliper, stock handlebar MC on a '09 Roadie . Lever pulsated from the get go. Know have 700 miles on it and pulsating still there. Pulsated from the very start. Rotor looks good with no high or low spots from pads rubbing. Brake seemed to bleed just fine. Stops OK but not great. All parts were bought new. Any thoughts? Thanks.
Cruiser
Joined: Aug 2011
Posts: 120
Likes: 0
From: Va
Interested in some opinions myself. I have a 2012 SG that has done this from day one & the service department claims they can't fill it, when they ride it & see no issues. All braking component are 100% stock.
Cruiser
Joined: Apr 2007
Posts: 189
Likes: 1
From: Arkansas
2010 UC Limited and I've had the same issue. 3 different dealerships have looked at it and measured the rotor runout. "not at the limit yet"
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
Cruiser
Joined: Aug 2011
Posts: 120
Likes: 0
From: Va
2010 UC Limited and I've had the same issue. 3 different dealerships have looked at it and measured the rotor runout. "not at the limit yet"
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
Thread Starter
|
Intermediate
Joined: Jul 2010
Posts: 28
Likes: 0
From: Lawreneburg, IN
Any other thoughts? My rotor & caliper are brand new. Pulsated from the very start with no mileage. Can't be heat warpage with zero miles. Both RC Components and Performance Machine components are among the best. Thanks.
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Grand HDF Member
Joined: Dec 2007
Posts: 4,999
Likes: 55
From: Bay Area
Did you torque the rotor evenly when you installed it? If done out of sequence it may have distorted the rotor some.
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Cruiser
Joined: Sep 2011
Posts: 158
Likes: 1
From: Colorado
2010 UC Limited and I've had the same issue. 3 different dealerships have looked at it and measured the rotor runout. "not at the limit yet"
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
I have noticed that the front forks shake like crazy, set at a stop light with the engine running and have the front brake released and then apply the front brake and notice the shacking in the bike from the shaking of the engine harmoics transfered to the front.
I was wondering if my front brake pulse has some related issue to this harmonic.
I am a master auto tech and know for a fact that this is not a ABS actuation as one dealer claimed. One honest dealer in the next state agreed with me that it's there but they said the rotor is not out of spec for a warrantable replacment. I was wanting to pay for one some time to see if it helps. Last year at the blue ridge parkway, it drove me crazy coming down the mountians.
Unofficial HDF Chaplain
Joined: Dec 2009
Posts: 21,158
Likes: 18,078
From: san diego
are the wheel brgs in right, adjusted, ect, (not sure which brgs are in the rc components wheel, I assume they are the sealed ones) if the wheel has side play you will get the pulsation. after that you need to mount a dial indicator so you can read runout on the rotor to diag. the problem