Brutale 990R rebound damping - MVAgusta.net
 
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post #1 of 6 (permalink) Old 10-13-2016, 04:32 PM Thread Starter
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Brutale 990R rebound damping

Hi All,

Had a mate of mine, who is a wizz with suspension setup, run thru a basic setup of the 990R. The one problem: there is enough rebound damping in front fork.. we are right at the end of its adjustment.He has suggested new fork oil (and at 30k its prob due), maybe a grade heavier to slow down the oil travel or get the forks adjusted properly.

A couple of questions:

- Am i correct in that they would change the valve stack in the forks, thus allowing more adjustment?

- Does anyone know if the 990R has adjustable shim stack?

- Does anyone know the size of the fork/dust seals?
-- Answered my own question: 50x63x11 (actually anyone know the dust seal size?)

THanks

Simon

Cheers, Simon


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Last edited by greminn; 10-13-2016 at 04:55 PM.
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post #2 of 6 (permalink) Old 10-15-2016, 04:09 PM
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The marzocchi fork is often said to have insufficient rebound damping. Heavier weight oil might get it to where you need it. I don't know if that much can be done to the fork.
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post #3 of 6 (permalink) Old 10-16-2016, 09:50 AM
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Give these guys a shout...one way or the other, they can help.

Heavier weight fork oil will slow things down in both directions, but it isn't a substitute for correct valving.

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post #4 of 6 (permalink) Old 10-18-2016, 04:26 AM
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You might have a hole or crack in one of the shims ,they are thin and prone to breakage , I changed to andreani cartridge kit ,best thing i ever did .
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post #5 of 6 (permalink) Old 10-18-2016, 10:12 AM
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Quote:
Originally Posted by silentservice703 View Post
Give these guys a shout...one way or the other, they can help.

Heavier weight fork oil will slow things down in both directions, but it isn't a substitute for correct valving.
There was supposed to be a link in there....

Here it is:

http://www.fastbikeindustries.com/

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post #6 of 6 (permalink) Old 10-31-2016, 11:35 PM Thread Starter
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So went slightly heavier fork oil and that has sorted much of the issue. It's a stop gap measure until I can get it fully done.

Cheers, Simon


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Brutale 990R LE - Number 121/500
Brutale 910R

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