2010 crf450 shock comp. adjuster stacks

[tjmunro]

hi does anyone have the stock compression adjuster shim stack for the 2010 crf450r.

i have the 09 stack here.

18.2 x3

16.2 x3

11.2 x3

8.2

9.3 x2

Edited May 17, 2011 by tjmunro
typo

[mog]

they made very minor changes from the main stack(2 shims?)on the 2010 so i would be surprised if they changed the adjuster stack

[tjmunro]

this is what mxa said about 010,

(4) Kayaba shock. The rear shock gets the most work of any part of the 2010 model. The shock piston and high-speed compression adjuster have been redesigned, while the valving has been changed to make the shock more supple. The 2010 shock is more willing to move through small bumps, but still maintains excellent bottoming resistance.

[mog]

could be correct , be interesting to find out , most riders don't feel the 10 is good enough like the 09 wasn't either

[Jusa]

-10 model has lighter hc spring, different piston and com stack. I am not sure about the adjuster stack.

[racerfmx450]

2011 stock EU

18.2 3x

16.2 3x

11.2 3x

8x0.2

9.3 2x

?

[mog]

I see the stack is the same in stiffness but less in stack height , Im thinking this maybe to do with a different strength hs spring which maybe a different length?

[racerfmx450]

I see the stack is the same in stiffness but less in stack height , Im thinking this maybe to do with a different strength hs spring which maybe a different length?

Markus.

i cannot see any different in the heigth.

the springseat works on the 11mm shims so only the 11+16+18 plays a rule.

?

[mog]

8.2 (3) on the 09 and just one on the 11?

[tjmunro]

8.2 (3) on the 09 and just one on the 11?

sorry, got carried away with the x3's. 09 has only one 8x.2

[MarekB]

Does anyone have the stock compression adjuster shim stack for the 2007 CRF450R?

[karlace]

I've been stiffening the adjuster stacks up latly

[babilon]

Does anyone have the stock compression adjuster shim stack for the 2007 CRF450R?

I have found 2006 from valvinglogic.com

 

18.3   2

15.3   2

10.3   2

9.2  2

Edited April 10, 2014 by babilon

[MarekB]

I found 2006 from valvinglogic.com

 

18.3   2

15.3   2

10.3   2

9.2  2

спасибо! Thanks! Seems the same as my 2007. I'm asking because I bought shock second hand and I suspected that previous owner tampered with compression adjuster. Does any one know sizes of piston ports of this adjuster by chance? Mine seems to have 6x2mm + 2.5mm central bleed port but I'm not sure if they are stock or were drilled..

[farfromhome63]

what happens if you have nothing for this as a stack and just a spacer?

[MarekB]

Meaning you have no shim stack in adjuster?

[mog]

It will have huge bleed and will probably cavitate

[Vietze]

what happens if you have nothing for this as a stack and just a spacer?

 

Your shock can explode, when the cadj. is significantly softer than the main piston valving.  (Not a joke).

[MarekB]

Your shock can explode, when the cadj. is significantly softer than the main piston valving.  (Not a joke).

Doesn't cadj piston port diameter restriction protect against cavitation? Such shock would be very soft on low speed but during high speed shaft movement, cadj piston ports would restrict oil flow and main piston shims would open?

[MarekB]

Another question: when you open CRF cadj HS adjuster (full counterclockwise), should adjuster spring become loose (so it rattles when adjuster is shaken)? Because that's what happening with mine and I'm not sure whether it's normal.