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Old 10-02-2010, 05:55 PM   #31
fishkens
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Ahhh, twin discs. My head was all caught up in a single disc paradigm.

Thanks.
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Old 10-02-2010, 05:57 PM   #32
One Less Harley OP
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I checked the location of the caliper to the rotor and it lines up perfect!!!



So now to get the other five machined!!


Looks pretty good....




Galfer Green pads will be in Monday, not sure about the stainless brake lines.
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Old 10-02-2010, 06:16 PM   #33
FR700
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Quote:
Originally Posted by One Less Harley
I checked the location of the caliper to the rotor and it lines up perfect!!!


Looks pretty good....


Nice .


.
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Old 10-02-2010, 07:28 PM   #34
Mike in NJ
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Quote:
Originally Posted by One Less Harley
So now to get the other five machined!!
I am definitely interested in one of them once you get it all sorted out!
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Old 10-03-2010, 02:06 AM   #35
950slider
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Laugh Been There, Done That...Works Well!

Easy conversion with easy access to replacement pads. I believe I took 4mm off of the caliper ears which is close to your measurement to center up the caliper to the rotor. I also used 'easy on the rotor' EBC pads.
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Old 10-03-2010, 07:46 AM   #36
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I think that is pretty much it.


Quote:
Originally Posted by fishkens
Thanks for the links.

So, centering the caliper perfectly over the disc is not needed to equalize pressure but, depending on the depth of the cylinders and other clearances of the caliper relative to the disc, spokes, etc., it may be needed to allow new pads to be fitted or to keep the disc, spokes, etc. from rubbing on the caliper.

That's what I was thinking but I was interested to hear if that thinking was correct.
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Old 10-04-2010, 11:39 AM   #37
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Five sets of Galfer green (FD198G1532) pads just arrived, the machinist got the ok to machine the calipers. Notice the spring for the brake pin, helps keep the pads from squeaking.




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One Less Harley screwed with this post 01-08-2012 at 08:10 AM
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Old 10-05-2010, 12:36 PM   #38
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One Less Harley: If this is a product you intend to sell, this thread should be in Vendors.

I doubt you have either:

a) 5 GSs
b) 5 friends that you're working on this with.

Please advise. If this is indeed a sale item and you're building publicity in Old's Cool, I'd be happy to move it over to Vendors for you.

Thanks,

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Old 10-05-2010, 03:35 PM   #39
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My intentions for the post,
1)to show how to do the conversion and what was needed in case others wanted to do it themselves.
2) get feedback on how well it had worked for others
3) and when it was sorted out to post a link to the vendor section for the 5 calipers and no more. Unless someone wanted me to have one machined. I won’t be making that much on them wanted to do one just for the heck of it. When I found 6 calipers at a good price I figured it’s just as easy to do one as six and probably cheaper.


I didn't feel this was out of the scope of posting in this section or against the rules until I started to sell them at a price. There is also a post in old school for the brake adaptor which a member was selling and people posted what they had done w/ it. I felt this was the same.


I would like to keep the post here for the peoples comments on the conversion and also here so others can do it themselves if they want.
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One Less Harley screwed with this post 10-05-2010 at 03:56 PM
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Old 10-06-2010, 05:23 AM   #40
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You can certainly machine what is a rare caliper to get the 4 pot brakes you want, or you can get a bracket to fit the 4 pot caliper to the standard Brembo F08 mounting lugs. I did this on the front of my Guzzi Disc Brake Eldorado. This has the side benefit of allowing you to shim the rotor over the center of the caliper either in or out depending. Shims between the caliper and bracket move the caliper inboard, shims between the bracket and fork leg move the caliper outboard. The adjusting shims are a standard Guzzi part. The bracket is available from guzzitech.

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Old 10-10-2010, 05:56 PM   #41
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a shameless vendor plug- all the parts are in now, please check vendor section if interested.

http://www.advrider.com/forums/showthread.php?t=627723
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One Less Harley screwed with this post 10-12-2010 at 06:40 PM
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Old 05-13-2013, 04:36 PM   #42
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Quote:
Originally Posted by 950slider View Post
Easy conversion with easy access to replacement pads. I believe I took 4mm off of the caliper ears which is close to your measurement to center up the caliper to the rotor. I also used 'easy on the rotor' EBC pads.
Just ordered a set of EBC CFA407HH pads.

My question is, is the master cylinder sufficient for the 4 pot Brembo?
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Old 05-13-2013, 08:26 PM   #43
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Yep, I then went to a 6 piston Tokico setup on my GSPD.
Bigger and better.
I still have my 4 piston caliper setup. I powdercoated it.
I'm interested in selling it





Les
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Old 05-14-2013, 05:10 AM   #44
orangebear
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my r100gs has been fitted with a 4 pot brembo caliper from a r100r it good

it will need split and rebuild as one pad wears fast then the other.
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Old 05-14-2013, 01:24 PM   #45
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Try the MC that you have first see if it is acceptable to you, if not look under my sig and see what I used..I don't remember, maybe a 12mm?? Motobins was cheaper than the US dealer.

Do not split your calipers for a rebuild..you've been warned..they can be rebuilt without splitting.

If you want to sell your caliper then you should post in fleamarket not here. I found this 4 pot at good as the 6 pot Harrison, far cheaper when figuring pads. The brembo is an easy swap plus uses OEM BMW parts, that's a plus in my book. The 6 pot has a lot of material and leverage on the mounting tabs, a minus in my book in case of an accident..think about that one.
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