I was wondering how the manufacturers of SLO’s (fake Stridas) dealt with this issue and
I found following picture in this topic: [url]seat height]
It looks like there is no cup spring (too expensive!), the axle is probably shorter, but there is no possibility to lock the bolt unless they use Loctite. There is not plastic insert in the bottom tube either. Hopefully they welded a small tube in it to guide and support the axle.
Maybe we should purchase SLO parts to check? 