Spot on and good info.

SAE focuses on engine specifications to achieve their rating systems, in addition almost any oil thats SAE will probably have polymers in it to obtain great VI characteristics at a broad range of temperatures... this is cool, but this usually converts the oil from a newtonian fluid to a non-newtonian fluid...
So basically instead of the oil being mostly dependent on temperature for is viscosity factor, it becomes largely dependent on velocity as well for its viscosity factor... this is obviously a poopy condition for your forks on your bike that have ever changing velocity lol

An animated video where I do the test suspension. Greetings!
The Kawa is the best dual purpose!

de paseo....jeje - YouTube

Wow, an amazing track you have there! Wish I could join...

What a cool track, fast and hard packed. Nice post

Jeff I am trying to find stiffer fork springs for my weight, 85 Kg, for 2010 klx.
I need 46 rated springs, { I think } Do you have part numbers for the fork springs you are using and where did you order from?

I only place I could get was in the Pro Moto

Moto-Pro Suspension

Thanks Jeff. Do you have a part number? I cannot find on site and these guys do not reply to my e mails.

Moto Pro Suspension - Company - Woodinville, Washington | Facebook

tlf. +1 425.844.0661

Do not understand why do not respond to e-business have closed ... maybe?

OK thanks Jeff. They replied and are sending .42kg/mm stiffer springs. They also suggested a 5.8Kg/mm rear spring. Did you change yours?

Is your stock spring already a 5.8 or did they change to another rate at some point on the S model?