sag amount vs. No. of turns on ring nut?



4 replies to this topic
  • imported_Scott_H

Posted October 24, 2001 - 03:44 PM

#1

I had no luck with my search on this topic even though I remember reading it maybe a year ago or so...

Does anybody have a rule of thumb on how many turns it takes on the spring pre-load ring nut that will give you about 5mm of race sag?

  • Mook

Posted October 24, 2001 - 04:07 PM

#2

I don't know if it is the same for the WR250F, which is what I have. But one turn = 1.5mm so you would be about 3 1/3 turns.

better get confirmation from a big bore though.

mook

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1975 KZ900 - project bike

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  • mcarp

Posted October 25, 2001 - 04:08 AM

#3

I don't think 3.5 turns is right. That's the shock travel difference, not the sag difference (5.5" of shock travel=over 12" of suspension travel)

I've found that slight movements in the rings make a BIG difference here. Mark where you are with a crayon so we can guage how far you turned the rings. Try just 3 "knotches" first and measure...IMHO

  • Bryce_Senff

Posted October 25, 2001 - 11:51 AM

#4

I would think that the number of turns of the ring nut and resulting sag would be dependent on the weight of rider and gear. What do I know though?...I work in a grocery store.
My .02
Good Luck,
Bryce

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Bryce Senff
WMRRA #201
WR426F
TL1000SV
CBR900RR
Oh it's Good to Be Back on a Dirtbike!

  • BlueThunder

Posted October 25, 2001 - 12:16 PM

#5

Gotta go with Bryce on this one...race sag will be determined by rider weight w/ gear...
free sag will be determined by how worked over the rear spring is(even fresh springs will have a slight variations if you throw them on a spring tester)....no way to determine these settings by # of turns unless you were consistent on the rest of the variables in the equation. Turn and measure is still the accurate way to set sag.




 
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