Sachs/ZF engineer just got back to me
The correct spring rate for the E9xM/E82M’s (linear front and rear according to the docs)
54 n/mm front (about 308 lb/in)
120 n/mm rear (about 685 lb/in)
Also sent me a shock dyno which is very interesting I’m askig permission to post. The adjustment range mostly changes the shape of the curve in small displacement rebound on the rears and the front adjuster has more impact PUN INTENDED on both rebound and bump
So, front spring is 10% softer than the next “softest” springs in a kit I know of, the Ohlins R&T, which is 60n/mm front 120 rear
Still digging these. Pretty damn awesome dampers.
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