BMW F08 calipers

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Davo

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Does anyone know whether the F08 Calipers from the earlier K75/K100 BMWs will fit as a direct replacement for the Laverda P08 or F08 gear? There seem to be plenty around the wreckers at a reasonable price.
 
I came unstuck with this, and rebuilt a pair of BMW Brembo calipers from an R100/RS and found that they were not compatible, the offset being incorrect, even repainted the bloody things, and yes they had Brembo Logos on them, I still have them,unused.
CLEM
 
The reason I ask is the part number for the K75/K100 BMW, as distinct from the R series, shares the same part number as the Brembo Caliper sold by Ducati dealer Gowanloch in Oz.

K75 (all non-ABS) 1983 to 1989 - - 20.3556.41

Reference from http://www.thisoldtractor.com/gtbender/brembo.htm#gtb_bmw

Obviously single bleed cf the double bleed of the Laverda but, hence my curiosity.
 
brembo 20.3556.40 and 41 are correct for the marzo forked triple and are single bleed
these are still available brand new

the twin bleed are 20.2247.10 and 11 and have been listed obsolete for many years

the older R100 caliper number is 20.4014.11 and 21


btw there is not a P08
there is  P108 but it uses the scarab/lockheed bolt pattern
it shares pistons (but not seals) with the F08

cheers,
scott
 
jotacorsa said:
brembo 20.3556.40 and 41 are correct for the marzo forked triple and are single bleed
these are still available brand new

the twin bleed are 20.2247.10 and 11 and have been listed obsolete for many years

the older R100 caliper number is 20.4014.11 and 21


btw there is not a P08
there is  P108 but it uses the scarab/lockheed bolt pattern
it shares pistons (but not seals) with the F08

cheers,
scott
Click to expand...

Ok, please excuse my ignorance and questions, but I am getting more confused by the minute. I know the 2 bleed nipple calipers are obsolete which is why I am trying to find replacements that still look the part. Are the threaded calipers interchangeable with the non-threaded if I want to mount them on Ceriani forks (lack of thread aside). If this is the case, will the calipers from a BMW K75 or K100 also fit as they share the same part number as the non-threaded calipers.

And if P08 calipers don't exist, what is this bloke selling? http://www.motocicliveloci.it/inglese/catalogue/frenidisco_uk.htm

Completely confused???

Dave
 
"And if P08 calipers don't exist, what is this bloke selling? http://www.motocicliveloci.it/inglese/catalogue/frenidisco_uk.htm"

dunno, i can drop massimo a note and ask him...i've an old brembo catalog from the mid 80's and it doesn't list any P04,05,08,09

the threaded and non threaded are the same caliper bodies. you can either install an insert or use a through bolt
some of the later style line up perfectly with the rotor, others require a shim between caliper and leg to correctly center the caliper over the rotor
so, yes, the K75/100 calipers can be fitted

cheers,
scott
 
I've just been trying to compare the original caliper off my Ceriani forks with a photo on Ebay and it appears that at the very least a shim would be required to move the BMW caliper towards the rotor to centre it. And then it appears that the gap in the caliper is for a much thinner rotor as well.

I guess I will have to trot over to the wreckers and do a direct comparison. Brembo appears to have made a plethora of configurations all loosely called F08. Very confusing.

Dave
 
jotacorsa said:
btw there is not a P08
there is  P108 but it uses the scarab/lockheed bolt pattern
it shares pistons (but not seals) with the F08
Click to expand...

Well, I just learnt something. Thanks Scott  :D

I always thought I had P08 calipers on my Italian bikes. If you google "Brembo P08" heaps of stuff comes up so it seems that's what everyone calls them, but they're all wrong.

They're actually P2 F08, which has somehow been whittled down to P08 by the general motorcycling public, but that's not what Brembo called them. The P2 bit refers to 2 pistons. Similarly, a Brembo P4 prefix means 4 pistons (as in P4 30/34)

I hope that clears up your confusion Davo, what you're talking about is actually a F08, not a P08.

Cheers,
Cam
 
Davo said:
I've just been trying to compare the original caliper off my Ceriani forks with a photo on Ebay and it appears that at the very least a shim would be required to move the BMW caliper towards the rotor to centre it. And then it appears that the gap in the caliper is for a much thinner rotor as well.

I guess I will have to trot over to the wreckers and do a direct comparison. Brembo appears to have made a plethora of configurations all loosely called F08. Very confusing.

Dave
Click to expand...

Shims are or have been available from Moto Guzzi. Part number 177 0750 (from the original packaging as best I can tell) .5mm washers for shimming the calipers to the forks. Very handy to have. Even stock, some "squaring" to insure the rotor is in the middle of the caliper may be needed.

 
I think those shims are actually genuine Brembo parts. I've seen them sold as Brembo accessories from several sources, notably bevel heaven. I tried putting a set of BMW 4 piston calipers (that I got for a song) on my Cerianis, needed a 4mm offset. I wouldn't want to stack 8 shims to do that.

Ken
 
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