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Old Jan 2nd 2019, 06:29 PM   #1
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Question Brembo brake master cylinder options

It's been brought to my attention that the stock brakes on my 899 are pretty spongy. Upon feeling the fellow rider's brake lever, it was like a rock (yea, that doesn't sound right, just go with it). I did a brake flush on the bike when I got it originally and felt that the brakes were about the same after I did the job..so I don't think I got any air in the lines. I could try another flush and see if that stiffens things up but I'm thinking I might need a better Brembo cylinder. I see 3 basic options out there, anyone care to suggest or recommend the below or others?

https://www.sportbiketrackgear.com/b...ster-cylinder/
https://www.sportbiketrackgear.com/b...ster-cylinder/
https://www.sportbiketrackgear.com/b...folding-lever/
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Old Jan 2nd 2019, 07:08 PM   #2
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Get this and be done with it. I didn't see any improvement in the quality of the internals on the RCS stuff over OEM. The standard Brembo GP billet units are bomb proof and not horribly expensive.
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Old Jan 3rd 2019, 12:29 AM   #3
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I had this issue with my Panigale 959, and the dealer replaced the master under warranty. Great dealer BTW.

The same spongy feeling eventually returned. It feels better right after a full brake bleed. Some suggest that only by using the software to activate the ABS motor during the bleed can you achieve perfect results. Apparently, the Panigale does not have that option.

The only folks who consistently claim they have eliminated all sponginess are those who go the ABS delete route. Apparently, the ABS circuit is the sponginess culprit.

https://www.ducatiomaha.com/products...abs-delete-kit

Good info here to consider before you alter the design parameters of the braking system:

https://www.ducati.ms/forums/56-supe...ers-999-a.html
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Last edited by Pard; Jan 3rd 2019 at 12:47 AM.
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Old Jan 3rd 2019, 05:53 AM   #4
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Originally Posted by endodoc View Post
Get this and be done with it. I didn't see any improvement in the quality of the internals on the RCS stuff over OEM. The standard Brembo GP billet units are bomb proof and not horribly expensive.
^^^I also run these and have had the RCS, the Billet setup is far superior
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Old Jan 3rd 2019, 11:06 AM   #5
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I've been contemplating deleting the ABS as I've been blaming the sponginess at the lever to the ABS system.
Does the pump hold a considerable amount of fluid? Also how does the pump actually work ?
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Old Jan 3rd 2019, 11:20 AM   #6
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Deleting the ABS crap is the best thing you can do and there are a few options. One is to mod the ABS pump get rid of all the mechanical parts which a few of us have done. Second option (most of the peeps) have done is leave the entire pump there and plug the ports. Third option is get the Bike Sport Development ABS delete and add more wires/connectors n shit onto the bike.

The pump basically works like a mini auto master cylinder when the electronics say add a small amount of brake it basically does.


Originally Posted by Calderara di Reno View Post
I've been contemplating deleting the ABS as I've been blaming the sponginess at the lever to the ABS system.
Does the pump hold a considerable amount of fluid? Also how does the pump actually work ?
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Old Jan 3rd 2019, 12:16 PM   #7
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Originally Posted by endodoc View Post
Get this and be done with it. I didn't see any improvement in the quality of the internals on the RCS stuff over OEM. The standard Brembo GP billet units are bomb proof and not horribly expensive.
What's the model name or part number for the billet unit? I'm looking for a 19x18 for my s1000rr.
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Old Jan 3rd 2019, 12:21 PM   #8
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Originally Posted by Calderara di Reno View Post
I've been contemplating deleting the ABS as I've been blaming the sponginess at the lever to the ABS system.
Does the pump hold a considerable amount of fluid? Also how does the pump actually work ?
The workshop manual has several pages showing the hydraulic schematic in various stages of the abs sequence.
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Old Jan 3rd 2019, 12:50 PM   #9
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Originally Posted by Calderara di Reno View Post
I've been contemplating deleting the ABS as I've been blaming the sponginess at the lever to the ABS system.
Does the pump hold a considerable amount of fluid? Also how does the pump actually work ?
Working on it at the moment,the mechanical pump is gone and the front electrical unit connected as the signals must pass by.
Easy and simple.
Not much fluid in it when drained the entire system.
Its about time i do this,its frustrating to never get the air out and the lines running back and forth cannot be good.
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Old Jan 3rd 2019, 06:22 PM   #10
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wow, thanks guys. Didn't realize this was a can of worms I was opening. I guess upgrading the master cylinder would only be half the battle..
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