2010 Electraglide UC Front brakes pulsating
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Stage IV
Joined: Sep 2019
Posts: 4
Likes: 0
From: Nova Scotia, Canada
2010 Electraglide UC Front brakes pulsating
Hi all,
I have a 2010 Electraglide UC with 88K Km on it. I’ve been experiencing pretty severe pulsating with the front brakes as of late. I’ve tried everything I can think of and read on several forums including:
1. New brake fluid
2. Took to dealer for the brake fluid recall and had a full brake system flush
3. Replaced the rotors thinking one was warped
4. New EBC brake pads installed. While replacing the pads I accidentally popped out one of the pistons on the left caliper so I broke it apart and put the piston back in. Bled the brakes and no change
5. Bought a new set of calipers (from a guy that replaced his with chrome ones before taking possession) and replaced the left-side one (in case I nicked or damaged the piston or seal from 4 above
6. Since I have the new one I will replace the right side caliper next... Didn’t do anything on that side except replace the pads and bleed when replacing the brake fluid.
7. Using fresh, just opened DOT4 brake fluid each time I’ve worked on the brakes.
8. Both sides have been thoroughly cleaned with brake cleaner to ensure there’s no debris stuck in and around the pistons, etc.
9. Had a new inspection recently and nothing noted with any bearing issues, etc. Also checked the front wheel for any obvious signs of movement (worn bearing) as well as the headset. All seem solid and no play noticeable.
This pulsating is severe when stopping at highway speeds, much less so when going slower and when I am coming to a stop its there as well... Then its like it’s grabbing and losing grip as the wheels turn and the bike is moving, just a little annoying.
If anyone has any ideas or suggestions it would be greatly appreciated! At my wits end with it at this point!
I have a 2010 Electraglide UC with 88K Km on it. I’ve been experiencing pretty severe pulsating with the front brakes as of late. I’ve tried everything I can think of and read on several forums including:
1. New brake fluid
2. Took to dealer for the brake fluid recall and had a full brake system flush
3. Replaced the rotors thinking one was warped
4. New EBC brake pads installed. While replacing the pads I accidentally popped out one of the pistons on the left caliper so I broke it apart and put the piston back in. Bled the brakes and no change
5. Bought a new set of calipers (from a guy that replaced his with chrome ones before taking possession) and replaced the left-side one (in case I nicked or damaged the piston or seal from 4 above
6. Since I have the new one I will replace the right side caliper next... Didn’t do anything on that side except replace the pads and bleed when replacing the brake fluid.
7. Using fresh, just opened DOT4 brake fluid each time I’ve worked on the brakes.
8. Both sides have been thoroughly cleaned with brake cleaner to ensure there’s no debris stuck in and around the pistons, etc.
9. Had a new inspection recently and nothing noted with any bearing issues, etc. Also checked the front wheel for any obvious signs of movement (worn bearing) as well as the headset. All seem solid and no play noticeable.
This pulsating is severe when stopping at highway speeds, much less so when going slower and when I am coming to a stop its there as well... Then its like it’s grabbing and losing grip as the wheels turn and the bike is moving, just a little annoying.
If anyone has any ideas or suggestions it would be greatly appreciated! At my wits end with it at this point!
Last edited by Sizzler; Aug 7, 2020 at 01:12 PM.
Thread Starter
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Stage IV
Joined: Sep 2019
Posts: 4
Likes: 0
From: Nova Scotia, Canada
Thanks for hte suggestion... Just did that google search... Will give the rotors a good cleaning with a non-metallic abrasive pad and do the break-in process again, see if it helps... Not overly optimistic in this case as Ive tried two sets of brake pads and two sets of rotors But you never know...
But you never know...
Thread Starter
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Stage IV
Joined: Sep 2019
Posts: 4
Likes: 0
From: Nova Scotia, Canada
Everything looks to be in great shape including the pad pins and retaining clips. No noticeable irregular marks or wear. It’s a bit baffling to be honest. I’ve maintained, repaired and replaced brakes, pads, fluids, etc. On all of the bikes I’ve owned (15+ at this point) and have never had this much pulsating nor this much trouble fixing it
Road Captain
Joined: May 2014
Posts: 675
Likes: 252
From: Alberta
Considering all you have done, this may be clutching at straws but:
- Any weird wear patterns or cupping on the tire?
- Could the wheel bearings be bad?
- Can you pull the wheel and maybe put it on a truing stand to see if it is bent or the rotors have a wobble?
Thread Starter
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Stage IV
Joined: Sep 2019
Posts: 4
Likes: 0
From: Nova Scotia, Canada
Tires are in good shape and no abnormal wear/cupping
Wheel bearings feel fine in that with the wheel off the ground there is no play in the wheel at all.
Don’t have a truing stand but will see what I can jimmy-up to give it a test
Wheel bearings feel fine in that with the wheel off the ground there is no play in the wheel at all.
Don’t have a truing stand but will see what I can jimmy-up to give it a test
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Road Captain
Joined: Jun 2012
Posts: 574
Likes: 156
From: Big Sky Country
Seems like I remember seeing a post about similar issue and someone suggested pistons on one side of a brake caliper could be stuck, but not sure about that.
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