R6 shock spring replacement

[marrcel]

On the track of Zandvoort my exhausts scrapped the asfalt. [emoji36] 31k rd350 ypvs 1983.
Stock swinger with 17” wheel.
R6 ‘00 shock. Comp 1 click open. Rebound 15 click open. Preload maximum.
A stiffer spring is an option. But another 2nd hand shock probable cheaper and better. Which shock has the same dimensions and has a stiffer spring?

[marsbar350]

have look at the bottom of the page
just change these www.nkracing.co.uk/n6.html

[marrcel]

Guys i just found out that the shock lost its damping😤