The rebound action on my Sachs 2016 RE forks is getting weak. They seem to top out a lot more than they use to, and I have had to increase the rebound settings to compensate. I did replace the piston assembly (026.34.354.00.00) awhile back as a replaceable wear item when the Teflon bushing was showing signs of wear. And, all was great for a while. But lately, the rebound seems to be blowing through without much resistance. I do not see any replaceable wear item offered for the rebound assembly. You have to buy the complete unit. The rebound piston has an O-Ring and a sealing band. Assuming these are wear items, has anyone ever sourced these individual parts - and if so, where did you get them? Other than wear on the rebound O-Ring and band, I do not why the rebound would be getting weaker. I don’t think shims ever wear out. If anyone has experienced similar issues, I would be interested to hear how you resolved them.
joe