Ohlins DH 38 Fork Setup | Video Guide 

True, mine does as well, but other brands like Fox and Rockshox use them as positive air chamber spacers. I think they are the only brand out there that allows for customization of the negative air spring.

Thanks for posting that. I'm 4 days/rides in with my DH38s and having a nightmare with braking bumps and square edge hits (high speed compression sort of stuff) I just can't get them tolerable over high speed chatter. Sending them in for a tune so will ask them to remove the spacer. My RXF38s are tuned and feel amazing.

@@michaelgoodwin593 glad we could help!

@@michaelgoodwin593any luck ? I have the same feeling. Horrible over chattery terrain and brake bumps

@mateicc not yet no, they are being tuned and serviced next week. Not sure when I'll be able to test them out but keen to get them tested.

I've only done the 50hr and 100hr service which does not include the damper cartridge. I couldn't find the info on Ohlins website either.

@@NICADV It's weird because once you disassemble the ttx cartridge, then to assemble it you must have the information of when to put oil. Thank you so much for replying, I'll keep looking