AGAIN with this stuff!?!?
Supporter
Joined: Mar 2008
Posts: 4,419
Likes: 90
From: Vermont
Two things I'm aware of with this issue. Somewhere there is, and I read about, a Harley TSB about this and the recommendation to swap the rotors to opposing sides to correct the vibration issue. The second is a known problem with front wheel bearings failing with little notice. First indication is the intermittent wheel vibration particularly while braking. Worth checking into.
Road Master
Joined: Jan 2008
Posts: 959
Likes: 5
From: Oswego, IL
Keeping a clutch in the friction zone is a good way to be needing a new clutch well before its time.
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Supporter
Joined: Feb 2009
Posts: 1,685
Likes: 37
From: Hoboken, NJ
Two things I'm aware of with this issue. Somewhere there is, and I read about, a Harley TSB about this and the recommendation to swap the rotors to opposing sides to correct the vibration issue. The second is a known problem with front wheel bearings failing with little notice. First indication is the intermittent wheel vibration particularly while braking. Worth checking into.
Cruiser
Joined: Jul 2011
Posts: 196
Likes: 2
From: Murfreesboro, TN
You might try checking to make sure the wheel is centered in the calipers. It may use unequal length spacers like the pre-'09 bikes use. They could be reversed causing the rotor to be moving more than the floating rivets allow. That would cause them to flex every time you apply the brake. Good luck.
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Supporter
Joined: Feb 2009
Posts: 1,685
Likes: 37
From: Hoboken, NJ
You might try checking to make sure the wheel is centered in the calipers. It may use unequal length spacers like the pre-'09 bikes use. They could be reversed causing the rotor to be moving more than the floating rivets allow. That would cause them to flex every time you apply the brake. Good luck.
Terrific.
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Supporter
Joined: Feb 2009
Posts: 1,685
Likes: 37
From: Hoboken, NJ
Ok. Just got back from the dealer and spoke with the wrencher who put the HD floaters on. His reasoning is as follows:
The Brembo calipers are designed for 16" & 18" wheels and stock HD rotors. When you increase the diameter of the wheel itself, you're asking the calipers to do work they weren't specifically designed for, hence the repeated warping. He said that he's had folks with issues like this before but not often.
I can kiiiinda see what he's saying but it also sounds like he's trying his best to protect the HD brand, no?
Anyway, I am bringing her in in the morning and he's going to throw the re-trued PM rotors on. Let's see how long THEY last...
The Brembo calipers are designed for 16" & 18" wheels and stock HD rotors. When you increase the diameter of the wheel itself, you're asking the calipers to do work they weren't specifically designed for, hence the repeated warping. He said that he's had folks with issues like this before but not often.
I can kiiiinda see what he's saying but it also sounds like he's trying his best to protect the HD brand, no?
Anyway, I am bringing her in in the morning and he's going to throw the re-trued PM rotors on. Let's see how long THEY last...
Road Master
Joined: Jan 2008
Posts: 959
Likes: 5
From: Oswego, IL
Ok. Just got back from the dealer and spoke with the wrencher who put the HD floaters on. His reasoning is as follows:
The Brembo calipers are designed for 16" & 18" wheels and stock HD rotors. When you increase the diameter of the wheel itself, you're asking the calipers to do work they weren't specifically designed for, hence the repeated warping..
The Brembo calipers are designed for 16" & 18" wheels and stock HD rotors. When you increase the diameter of the wheel itself, you're asking the calipers to do work they weren't specifically designed for, hence the repeated warping..
And if my memory serves me right...... Most aftermarket wheels, tire, rotor set up's are lighter than most stock wheels meaning there is less rolling inertia for the brakes to deal with...... Not more....... Please correct me if I am wrong.
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Cruiser
Joined: Jul 2011
Posts: 196
Likes: 2
From: Murfreesboro, TN
Then why does HD put a 19" wheel on the CVO's? I have not heard of any problems with the Agitator wheel set up. I call BS on the "wrencher's" explaination.
And if my memory serves me right...... Most aftermarket wheels, tire, rotor set up's are lighter than most stock wheels meaning there is less rolling inertia for the brakes to deal with...... Not more....... Please correct me if I am wrong.
And if my memory serves me right...... Most aftermarket wheels, tire, rotor set up's are lighter than most stock wheels meaning there is less rolling inertia for the brakes to deal with...... Not more....... Please correct me if I am wrong.
For that matter the larger OD rotor has more leverage and surface area to do the same job, so the loading would be less per square inch of rotor area. Tech's explanation would have to be backed up with better evidence for me not to call BS on it.
Cruiser
Joined: Jul 2011
Posts: 196
Likes: 2
From: Murfreesboro, TN
Reread the post and realized it does not say anything about the rotors being bigger, only the wheel.
However, the part of my earlier post stands true, the weight af the bike is basically the same as the original wheel set-up and therefore, the load on the brake is the same when trying to stop.
The one thing that would change if the wheel were so big as to change the overall OD of the tire, is that the larger OD tire will rotate slower at a given ground speed because the tire covers more ground in one revolution than a smaller tire.
That would still not be a problem or you wouldn't be able to stop your machine at high speed.
However, the part of my earlier post stands true, the weight af the bike is basically the same as the original wheel set-up and therefore, the load on the brake is the same when trying to stop.
The one thing that would change if the wheel were so big as to change the overall OD of the tire, is that the larger OD tire will rotate slower at a given ground speed because the tire covers more ground in one revolution than a smaller tire.
That would still not be a problem or you wouldn't be able to stop your machine at high speed.