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Hi everyone,
I wanted your input on this question :
i want to lower a bit my f11 m550d with adaptive drive
There are a few options on the market :
H&R
ACS
RD Sports
KW
Eibach ...
From what i could gather and exchange with manufacturers, only RD Sports is making a dedicated progressively wound springs for adaptive drive suspensions
All the others are providing linear wound springs and do not make
I guess that the original springs are linear ones from pictures i saw
Furthermore, from my understanding, progressively wound springs advantages are the same as the adaptive drive meaning that installing those would be doing twice the job.
Progressively wound springs as well as adaptive drive suspension are trying to control body roll either by stiffer spring rate at one given compression or by increasing the anti roll bar stiffness.
Price is a concern as RD Springs are 7.5 more expensive than the other solutions (at least in Belgium : RD sport : +-1500 €, all the others : +-200 €)
I read a lot about people happy with their lowering spring whatever the brand and i know what i would choose if i go for linear springs.
My question is do you think that progressively wound springs are "better" than linear and not redundant with adaptive drive ? and in what way ?
Thanks
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