2010 yz 450 f sag

3 replies to this topic
  • Boostpig

Posted August 26, 2011 - 11:52 PM


I am 90kg
I have set up my 103mm race sag
and i am getting 43mm static sag? it should be 25-30mm yea??
But when i check the racetech spring calculator it says to buy a softer spring?
The bike has stock springs....
so i am very confused, anyone else this weight running stock springs?

  • YamaLink

Posted August 28, 2011 - 03:40 PM


It recommends the closest to 5.684 and seeing as how the stock spring is 5.7, that's pretty darn close.

Recommended Shock Spring Rate: 5.684 kg/mm (use closest available)
Stock Shock Spring Rate: 5.7 kg/mm (stock)

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  • Boostpig

Posted August 28, 2011 - 06:35 PM


Yea thats what i thought...
which is why i am so confused on how i am getting 13mm more static sag then the recomended maximum??

  • grayracer513

Posted August 28, 2011 - 06:56 PM


Linkage ratios account for some of what you see as "excessive" static sag. There seems to be a trend toward statics in the 35-40 range with race sag around 100 with springs that are otherwise correct for the rider weight, based on observations made of some recent models.

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