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"88 K75S brake rotars

O

OLDPILOT

oldpilot
My just purchased winter project with 124,000 miles runs well but needs some things
replaced like the brake rotors. They look worn compared to my K100rs with 30k miles,
but I have not miked them yet to see how bad they may be worn.
My question is, sources for replacements?
New parts look to be Very expensive from BMW.
Ebay is a possibility but unknown quality of what you buy.
Suggestions?
 
Motobins.co.uk has the identical replacement for $260-ish. I've always been happy with their service.
 
oldpilot said:
My just purchased winter project with 124,000 miles runs well but needs some things
replaced like the brake rotors. They look worn compared to my K100rs with 30k miles,
but I have not miked them yet to see how bad they may be worn.
My question is, sources for replacements?
New parts look to be Very expensive from BMW.
Ebay is a possibility but unknown quality of what you buy.
Suggestions?
Click to expand...

Many people buy new aftermarket rotors from EBC or Braking. Less expensive than stock.
 
Last edited:
Spiegler Performance offers a rotor conversion program - you send them your rotors and they convert them to floaters. I had them do this on my R65LS and wished I'd done it on my K75s. The turnaround is fast, price is reasonable and the finished product is beautiful.

Spiegler supports BMW MOA, advertises regularly and has a booth at the rallys.

Also a very good resource for stainless steel brake lines and brake pads.

Good Luck.
 
kentuvman said:
Spiegler Performance offers a rotor conversion program - you send them your rotors and they convert them to floaters. I had them do this on my R65LS and wished I'd done it on my K75s. The turnaround is fast, price is reasonable and the finished product is beautiful.

Spiegler supports BMW MOA, advertises regularly and has a booth at the rallys.

Also a very good resource for stainless steel brake lines and brake pads.

Good Luck.
Click to expand...
How much was the conversion and why did you get them done on your R65LS? Was it pulsations in your front handle or rear brake pedal?
 
Why I Converted

The OEM Rotors on my R65LS were grotesque from sitting outside for however long the PO neglected this wonderful piece of art.

This is how they looked before sending them to Spiegler.
 

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The Price I Had to Pay

Prices taken from Spiegerusa.com website:

http://spieglerusa.com/brakes/bmw-rotor-conversions.html
Looks like I paid @ $250 including tax.

This is what I got back! Floating brakes are Niiice!!!

My understanding is they preserve the hub - bead blast, etc. and install new rotors. I interviewed the owner Matthias Schaub, owner a couple years ago when I wrote a story for MOA about brakes. This guy knows his stuff - a real German engineer from Germany. He also is a flat track racer and walks the talk.
 

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Last edited:
kentuvman said:
Prices taken from Spiegerusa.com website:

http://spieglerusa.com/brakes/bmw-rotor-conversions.html
Looks like I paid @ $250 including tax.

This is what I got back! Floating brakes are Niiice!!!

My understanding is they preserve the hub - bead blast, etc. and install new rotors. I interviewed the owner Matthias Schaub, owner a couple years ago when I wrote a story for MOA about brakes. This guy knows his stuff - a real German engineer from Germany. He also is a flat track racer and walks the talk.
Click to expand...

Beautiful work! Good to know. :thumb
 
oldpilot said:
My just purchased winter project with 124,000 miles runs well but needs some things replaced like the brake rotors. .....
Click to expand...

I went with new EBC rotors on the front. They're OK, not great, relatively less expensive, but don't be too fooled by the "floating rotor look". Mine show no "float" at all. I did have some trouble getting two rotors to run true within their calipers. When I first mounted the rotors, I immediately had severe frontend chatter under moderate braking. The dealer replaced one of the two rotors and the chatter disappeared.
 
breyfogle said:
I went with new EBC rotors on the front. They're OK, not great, relatively less expensive, but don't be too fooled by the "floating rotor look". Mine show no "float" at all. I did have some trouble getting two rotors to run true within their calipers. When I first mounted the rotors, I immediately had severe frontend chatter under moderate braking. The dealer replaced one of the two rotors and the chatter disappeared.
Click to expand...

I also had a lot of trouble with the EBC's. After 20k miles, one of them locked up tight, and the other jangled over bumps like a piece of chain, and this design was not rebuildable.

Its too bad.....when they were new, they were great.
 
Ebc

I put EBC rotors front and back on my 87 K75S and have had no problems for 25k miles. But I must say the Spiegler rebuilds look beautiful and if the total price for the two fronts was $250 I would not hesitate to use them. I have their stainless steel brake lines and they are excellent.
 
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