避震蕊問題

Hello Brothers,

I got a set of TRF oil dampers, actually for my TL01-based big foot
but the length of the shock shaft is not long enough, the default is just around 60mm.
If I want to increase the damper length to 70-80mm, what is the length of the shock shaft should I get?
Can I get it from KWS?
Thank you sin!