Brake pulsing / judder
- Thread starter Monty
- Start date
Kremmen
Registered user
The other part of "Characteristic" i asked to have checked was...
On light rear brake application just before you come to a stop the pedal drop a small amount without any additional input from me.
When the bike was being serviced i took out an 09 courtesy GS ....it did exactly the same???
On light rear brake application just before you come to a stop the pedal drop a small amount without any additional input from me.
When the bike was being serviced i took out an 09 courtesy GS ....it did exactly the same???
Bummer....
it was a bit of a bad day, what with the brakes and also the remus headers not fitting. Hopefully i will actually be out and doing some miles tomorrow.
Kremmen
Registered user
Hi folks,
The right one was warm and the left a lot cooler.
I haven't noticed the above .... but what i do find is that the brake dust is in greater amounts coming from the left disc as opposed to the right...
There are no seized /partially or sticking pistons, both disc are free and float with no resistance??
Now if the brake fluid line from the master cylinder went to the left caliper before the right i might have considered it as the reason ... but the main feed "Tee's" off on the bottom yoke.... i'm still trying to work it out..
Hi all,
Just to resurrect this one, I went for my 12,000 mile service at Cannon following a trip around the alps with my brakes now clearly juddering from any speed.
They measured the run-out, found it to be out of tolerance (0.16mm on one disc, virtually nothing on the other) and put in a claim to BMW. All now agreed and I will be getting new discs and pads fitted in the next week or so.
Here's hoping it will not happen again.
Matt
Just to resurrect this one, I went for my 12,000 mile service at Cannon following a trip around the alps with my brakes now clearly juddering from any speed.
They measured the run-out, found it to be out of tolerance (0.16mm on one disc, virtually nothing on the other) and put in a claim to BMW. All now agreed and I will be getting new discs and pads fitted in the next week or so.
Here's hoping it will not happen again.
Matt
mr badger
Registered user
Hi all,
Just to resurrect this one, I went for my 12,000 mile service at Cannon following a trip around the alps with my brakes now clearly juddering from any speed.
They measured the run-out, found it to be out of tolerance (0.16mm on one disc, virtually nothing on the other) and put in a claim to BMW. All now agreed and I will be getting new discs and pads fitted in the next week or so.
Here's hoping it will not happen again.
Matt
I won't say I told you so, but I told you so.
Good result.
I won't say I told you so, but I told you so.
Good result.
You really are a wise Badger
Finally going in to get the brakes sorted this week. Any tips for how to "run in" new brakes to make sure I get the best from them? I have searched here but not found anything specific, but that may be because I am being a bit too much of a geek and I just need to get out and ride?
Cheers,
Matt
Cheers,
Matt
TeaPig
Registered user
The instructions that come with new pads normally says avoid unecessarily hard braking for the first hundred miles or so until the surfaces of the pads (and discs if they are new) have bedded in.
Thereafter just go for it.
I've been reading this forum for several years and I've never seen a definitive explanation as to why GS disks warp or cause shudder, but it's been going on for years. The fact that one of your disks warped and the other hasn't shows that it's not your riding style but more likely something down to the disk itself, or variations in the way they are located.
I'm often hard on the brakes as I like chasing sports bikes. In hundreds of thousands of miles on GS's I've only replaced disks because they have worn too thin, not because they have warped so I don't think hammering them causes a problem. I reckon it's a QC issue with the disk material myself, but that's just a guess.
Thereafter just go for it.
I've been reading this forum for several years and I've never seen a definitive explanation as to why GS disks warp or cause shudder, but it's been going on for years. The fact that one of your disks warped and the other hasn't shows that it's not your riding style but more likely something down to the disk itself, or variations in the way they are located.
I'm often hard on the brakes as I like chasing sports bikes. In hundreds of thousands of miles on GS's I've only replaced disks because they have worn too thin, not because they have warped so I don't think hammering them causes a problem. I reckon it's a QC issue with the disk material myself, but that's just a guess.
I dont know if this will help but my first 1200 had slight brake judder at lo speeds.Turned out the rear wheel bearing was loose in the housing.It was not the judder that made us find it but the eventual brake binding.Only happened after the drive warmed up tho!.
by the by i always use rear brake in towns/low speeds.
by the by i always use rear brake in towns/low speeds.
(RIP) Johno23
Registered user
Had brake judder on my 09 GS at 6000 miles.
had front discs replaced under warranty along with the pads.Very common i believe.Did notice that the new discs have the Brembo logo on them but the originals did not.
Week after the change Riders of Cardiff phoned me up and said although the pads have to be changed with the discs, BMW wont pay for the pads!
Told them no way was i paying for new pads after only 6000 miles, they were less than 20% worn.
Haven't heard from them since.
had front discs replaced under warranty along with the pads.Very common i believe.Did notice that the new discs have the Brembo logo on them but the originals did not.
Week after the change Riders of Cardiff phoned me up and said although the pads have to be changed with the discs, BMW wont pay for the pads!
Told them no way was i paying for new pads after only 6000 miles, they were less than 20% worn.
Haven't heard from them since.
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