So I was having some issues with the forks clicking and not rebounding well, and it was way overdue for a refresh anyway, so I went and got some new springs and seals.
When the forks were removed there was this broken spring guide type thing in there that I can't find on any fiche. They were previously worked on at Traxxion, but I was told they only changed the springs.
Anyway, could someone tell me what this black piece is?
It's a guide to centralize the springs on true centre to reduce spring bowing on bump.
That was the spring rubs less on tube inner and reduces the amount of super fine rubbings that contaminate the oil.
Right.. but are they required? And more importantly, what do they come with, since they aren't in the fiche, nor seem to be sold separately at either Traxxion or Race-Tech (where the new springs are from).
Wow. I think I'd rather have the springs rub a little than have plastic chunks floating around inside my forks. Agree with McRomo; don't worry about replacing them, just leave them out.
A buffer kit remains a valid addition for front ends with no spring centralization feature aside from tube inner diameter.
(Traxxion calls then buffer kits when one is looking at a set of them for one front end)
A lot of fork manufacturer's use those nowadays just for reasons mcromo described, with no such issues. Don't believe Honda had these stock in 9er forks. If they were indeed traxxion units, I would be sending these pics to them.
How long is it? is it longer than fully compressed spring? (spring wire diameter x number of coils)
They have a thick collar that goes between the spring & preload spacer so there would be a difference between running them vs. not running them as far as effective preload spacer length is concerned when using Traxxion springs.
Too late now since you switched to Racetech but...