ATE Caliper - Sliders a Replacement Part?

[barron_williams]

Are these parts something that wears out and needs replacement?

I don't see them on any of the parts fiches and it doesn't look like they are part of the rebuild kit.

I don't know that I have a problem, but whenever I have the calipers off for something and am cleaning them up, I wonder about the this part.

Barron

 

[darryl cainey]

I have 477,500 miles on my 1977 R100RS and have never replaced mine or seen any signs of wear!

Never seen any available either.

 

[krpreston]

ATE Caliper

Looking at the horrible wear pattern on the pads suggests your first concern is aligning the caliper to the disc.

 

[20774]

These sliders or buttons are not available as parts that I know of. They allow the caliper to swing as needed. If they're missing or worn down, you caliper will move up and down on application giving you a noticeable clunk. Tom Cutter says that he makes them out of hardwood as needed. Alternatively, you could see if any of the salvage places might have a completely trashed caliper.

 

[waehrik]

Looking at the horrible wear pattern on the pads suggests your first concern is aligning the caliper to the disc.

Correct me if I'm wrong, but I don't see anything wrong with the wear pattern on the OP's brake pads. They come like that new, with the material formed in the parallel triangular pattern.

 

[30064]

Correct me if I'm wrong, but I don't see anything wrong with the wear pattern on the OP's brake pads. They come like that new, with the material formed in the parallel triangular pattern.

+1.

Those pads appear fine to me also. They follow the position of the caliper which is not parellel to the rotor. This also threw me for a loop at one time. Easy mistake to make.

I wouldn't be too concerned with that caliper contact button as long as the fork slider flange isn't contacting the caliper itself. Unless I'm mistaken, that caliper and set of friction pads looks pretty darn good.

-Mike V.

 

[krpreston]

Correct me if I'm wrong, but I don't see anything wrong with the wear pattern on the OP's brake pads. They come like that new, with the material formed in the parallel triangular pattern.

Well if you say so. but that triagular pad is a new look to me. The ones I've been installing on my '78 R100 have had parallel front and back faces and I use the eccentric pivot pin to set the pads parallel to the rotor. That I check by using a marker to put a radial line on the rotor and then dick with the eccentric until the line gets scrubbed away equally throughout its length when the wheel is spun and the brake applied.

 

[jimwjarmour]

ate wear pad

if the slider pads are worn on the top, rotate the caliper assembly and install on the other side i did this a few years ago. and everything went ok hope this assists, jimmy

 

[mneblett]

Well if you say so. but that triagular pad is a new look to me. The ones I've been installing on my '78 R100 have had parallel front and back faces and I use the eccentric pivot pin to set the pads parallel to the rotor. That I check by using a marker to put a radial line on the rotor and then dick with the eccentric until the line gets scrubbed away equally throughout its length when the wheel is spun and the brake applied.

Not sure where you got your pads, but parallel pads are *not* stock stuff. The triangular pads have been there since day one -- a consequence of the ATE offset pendulum design. In fact, I'd wonder whether the parallel pads wouldn't result in an odd wear pattern.

 

[barron_williams]

Yes. The pads are OK. That is the way they come out of the box, triangular. The ones in the picture are fairly new EBCs.

I appreciate the feedback on the "sliders". Like I said, I'm not experiencing any problems, I just always wondered about them when I have the calipers off the bike and am cleaning them a bit.

Fixing the weep at the bottom of the works at the moment.

http://forums.bmwmoa.org/showthread.php?t=50280

Cheers,

Barron