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      03-26-2020, 04:27 PM   #1
PLF69
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Drives: 2023 M3
Join Date: Jan 2017
Location: Quebec

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I am installing my Ohlins kit with custom spring rates, here is my question.

Normal spring rate for onlins is 90nm front and 190nm rear. I have 70nm front and 140nm rear.

Is there a way to calculate how much more preload I need to end up at the same ride height than with the original spring rates ?

Per instructions at the rear I need 40mm of space between top spring lock nut and body seat.

In the front it's really 5mm of preload


- Also why is the onlins rear shock lenght instructions so short, they say they need to be at 500mm and the OEM shock is like 600mm, that's like 4.5 inches less of full droop ??

thank you
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