I got the spec f the spring directly from factory spec, only 42 Nm!
I have ridden a 750 w Öhlins original, soft but worked good.
I`d either sevice the Öhlins or sell all 3 and get a Wilbers fully adjustable.
NOTE: Paso w original Öhlins - high cred...

I still REALLY wonder, what is the spec of spring f a 80-90-100 etc kg rider on a 907?
It has a special linkage so no normal answers.
I have a Penske w 550 US spring, seems too stiff f me (95kg).
I asked Öhlins, Penske & Wilbers f spring rate, no answer....