BMW K bikes (Bricks)

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Dai

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Yes, I know you're on tour and yes, I know my sense of timing is absolutely lousy Very Happy and no, I don't expect an answer (if any) before you get back to the grindstone Razz .

I just pulled apart a pair of four-pot opposed-piston Brembo calipers (provenance unknown) that used to adorn the front of my Moto Guzzi V1000G5. All four piston sizes are 20mm x 32mm diameter; exactly the size of the smaller piston in the four-pot K100RS etc. brakes. A chat to my not-so-local Guzzi parts supplier revealed that Brembo no longer list an overhaul kit for these calipers. I'm a bit reluctant to shell out for eight K100RS overhaul kits (I wonder why?) when all I need is three pistons and eight sets of seals.

So, the question is (when you are in a position to be able to answer it), have you any idea which other BMWs use the same size caliper pistons?


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Dai

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Now he's home again - BUMP!!!!


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Two Wheels Better

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Dai, I never saw this whilst travelling. I'l do some research and get back to you. Just now unpacking my from jaunty li'l sojourn. Much to do.


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1987 K100RS, '93 Framed K11/K12 engine 'Big Block', '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic, '77 R75/7.
Sniff...can you smell that? I think it might be bullsh*t.

    

Two Wheels Better

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Heaps of others, as you can see. But BMW want a gob of dosh for the piston & seal kit alone. I note one has to search other bike models in this list to view an image which in fact shows the pistons DO come in this pricey kit. I do not know what other models of BMW allow for a separate purchase of seals or pistons. I collect callipers when they come up cheaply on eBay and such. I recommend seeing if you can locate a set or two inexpensively and take them all apart for the spares you need. Perhaps you'll get lucky and not have to disassemble any.


__________________________________________________

1987 K100RS, '93 Framed K11/K12 engine 'Big Block', '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic, '77 R75/7.
Sniff...can you smell that? I think it might be bullsh*t.

    

Dai

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Life time member
Life time member
Thanks TWB - I never expected you to see/do anything while you were on your epic. As I said, my timing was lousy! Very Happy Good tip on just buying calipers.


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Dai

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Life time member
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Just got lucky part#1 - four sets of spanky new caliper pistons for 51.62 inc. p&p. Okay, so I didn't need the large ones but...

Just waiting for 'got lucky part#2' now WHICH WILL BE four sets of caliper seals...


__________________________________________________
'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

Two Wheels Better

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Moderator
Moderator
cheers


__________________________________________________

1987 K100RS, '93 Framed K11/K12 engine 'Big Block', '09 K1300GT, '07 K1200R, '04 R1150RT, '95 R100 Mystic, '77 R75/7.
Sniff...can you smell that? I think it might be bullsh*t.

    

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