Brembo Brake arrangement for R65LS

[inveloveritas]

Hi all
I’m really on a struggle here I’ve rebuilt the front twin discs for my LS and they are back on and I’m having issues because of what I think is missing spacers and top hat spacers and getting what I have in the correct location and finding out why I’m missing.

I know there are exploded diagrams online (Max BMW for just one) but they aren’t accurate or precise enough for me unfortunately. I come from the 911 world and they have books with every single nut bolt and washer listed for the complete rivet counter. I’m not after counting rivets but I want my bike correct and running right.

Can someone give me a detailed picture of what goes where on my Brembos. What I have is this. Right hand caliper has a thin washer between the fork and the caliper. There is currently a top hat spacer outboard of the camper but only on the top.

On the left caliper the thin washer is outboard of the caliper top and bottom. Is that right ? Seems unlikely but should there then be a thicker washer outboard and the thin washer is inboard ??

Any help would be awesome and greatly appreciated. Also,the bolts that hold the calipers to the forks, should they be lightly greased ? My bike was rusted solid all over so it’s hard to know where to grease and where to leave alone !!!!

Many thanks.

[Bob_Roller]

Welcome to the site !!
I have 4 R65's with dual front discs one with ATE and three with Brembo calipers the caliper makes no difference  .
The left caliper should have no washers, spacers between the caliper and the fork leg .
The right should only have the top hat spacers in the upper and lower bolt holes between the caliper and the fork leg .
No additional spacers or washers in this area .
The flange on the top hat spacer centers the caliper over the disc .
I use a nickel anti-seize compound on most of the fasteners .

[georgesgiralt]

Hello,
The left hand disc is centered in the caliper housing using large roundel between the disc bowl and the wheel.
On the right hand side of the fork, the caliper is centered on the disc using the strange tube with thick hat piece of aluminum going between the caliper and the fork tube. They come in different thickness depending on the actual caliper, wheel, fork, disc you have. See parts # 16 and 14 in the attached image.

[inveloveritas]

Thanks everyone. So I have no “roundel” and if you go off that picture, the top hat goes into the OUTBOARD side of the caliper, with the washer and bolt following it. The distance between pads and discs would no way allow a thick washer like the “rim” section of the top hat between the caliper and fork leg on mine. It’s at least 1mm thick and there doesn’t seem to be the space

Confused here. Again.

[wilcom]

How does your set up differ from the Information Bob Roller  posted about his 4 dual disc set ups?

[georgesgiralt]

Thanks everyone. So I have no “roundel” and if you go off that picture, the top hat goes into the OUTBOARD side of the caliper, with the washer and bolt following it. The distance between pads and discs would no way allow a thick washer like the “rim” section of the top hat between the caliper and fork leg on mine. It’s at least 1mm thick and there doesn’t seem to be the space

Confused here. Again.

I wonder if I make myself clear or if I understand you correctly. On the right hand side caliper, the tubes with a "hat", part #14 in the picture are to be installed with the hat on the fork leg, the tube into the caliper and the bolt going trough it.
The hat thickness has to be chosen in order to center the disc in the caliper opening. It exists in various dimensions. Go to check on RealOem or Max BMW fiche.
The left hand caliper is mounted with it's face on the fork leg. And the bolt goes trough the caliper to bolt on the fork leg.
I'm 18 h flight from my bike so I cant put a picture of it right now, but I bet some one can !
If the holes of the right and left calipers are same diameter, you have not OEM BMW Brembo calipers. And I bet the piston diameter is not the correct one either...

[Bob_Roller]

Can you post a picture of what you have !!

[Adrian]

Hi there - I have a 2nd disc setup that I'm about to fit. I had not realised that the "hat" insert was required.
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I see it on the Real OEM site but There appears to be 4 types (different part numbers).
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I too am interested in the correct part number for these if it's possible for someone to put it on here along with photos. Also the correct bolt size.
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My calipers are both Brembo.
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Thanks in advance....

[Bob_Roller]

There are different part numbers due to the fact that the flange on the spacer has different thicknesses .
You have to mount the caliper on the fork and see how close it is to being centered on the disc .
Then order the correct spacers for your application .



https://www.realoem.com/bmw/enUS/showparts?id=0365-USA-06-1982-248-BMW-R65LS&diagId=34_0600

[Adrian]

Thanks for the info - I just checked all of the part numbers with both my usual suppliers - neither of them have the parts listed.
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So where might I go to buy them - thanks

[georgesgiralt]

I bought a couple of them from BMW motorcycle dealer. Mine where so corroded they where no longer usable. I reckon the nickel anti-seize grease could be a good idea...

[Adrian]

I bought a couple of them from BMW motorcycle dealer. Mine where so corroded they where no longer usable. I reckon the nickel anti-seize grease could be a good idea...

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High George - I'm still hunting for a supplier - waiting on Motorworks in the UK for a reply at the moment as they sold me the complete setup.
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I am wondering if you have the same model as I do - 1984 R65 - and if so what size you bought.
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Thanks
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Adrian .......

[georgesgiralt]

Mine is an 1982. And to find the size is easy.
Bolt the caliper to the fork tube and measure the distance between the center of the caliper and the center of the disc. This will give you the thickness of the "hat" needed to center the disk in the caliper housing.
Go to RealOem and get the P/N from the dimension.
Then go to a BMW Motorcycle dealer and ask them for a couple of that P/N.
Et voila !

[Adrian]

Mine is an 1982. And to find the size is easy.
Bolt the caliper to the fork tube and measure the distance between the center of the caliper and the center of the disc. This will give you the thickness of the "hat" needed to center the disk in the caliper housing.
Go to RealOem and get the P/N from the dimension.
Then go to a BMW Motorcycle dealer and ask them for a couple of that P/N.
Et voila !

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Great - thanks George