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Old July 31st, 2013, 09:41 AM   #1
Lychee
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rear suspension spring rate

What is the rear suspension spring rate? I don't know how to measure it.
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Old July 31st, 2013, 10:26 AM   #2
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I calculated the pre-gen once, but cannot find it now.

https://en.wikipedia.org/wiki/Spring...vice%29#Theory

You can measure the deformation if pulling the shock absorber out and load it.
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Old July 31st, 2013, 10:42 AM   #3
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Quote:
Originally Posted by Motofool View Post
I calculated the pre-gen once, but cannot find it now.

https://en.wikipedia.org/wiki/Spring...vice%29#Theory

You can measure the deformation if pulling the shock absorber out and load it.
Pregen is listed as 440 inch/pounds on the ninja 250 faq. Unfortunately I am looking for the 300's spring rate.
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Old July 31st, 2013, 02:03 PM   #4
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new gen is listed as 9.3 kg/mm on racetech's site. I think that is around 520 inch pounds. I have read that the spring rate on the 300 is the same rate but a longer spring, allowing for more preload. Can anyone confirm?
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