TruTune Flow.

 

So it does as advertised?

 

I'm using a luftkappe and definitely feels nicer than before. I'd imagine the everflow tank does the same thing. I'm on a 130mm Pike, charger rct3 damper, luftkappe and run 70psi for 71kg body weight.

The trutune flow won't change the negative chamber but is meant to improve compliance later in travel.

 

I'm a little lighter than you and have been really happy with the Vorsprung Secus. They show up used occasionally (https://www.pinkbike.com/buysell/list/?region=3&q=secus&category=87) and you can get the appropriate foot-stud direct from Vorsprung.

Luftkappe is another great option albeit won't get you as much as a Secus performance-wise...

 

If you want to try a very cheap mod, you could try removing the top out bumper and sticking in a few small o-rings in its place. I did this on my Lyrik with the C1 spring and it made a slight difference. The fork has no top-out issues, as the fork fully extended under its own pressure does not actually top out against the o-rings (not even close). In fact it only extends a few mm farther than before the mod with the front of the bike lifted off the ground. I could probably have left them out, but seemed like good security, and they take up a bit less volume than the bumper. Only downside is that I need to cycle the fork when adjusting air pressure as it no longer comes to rest at the equalization spot.

But I would test this on your fork to make sure it works the same and does not top out hard.

 

Trutune flow is likely what you're looking for. Dolface already mentioned the secus, which is also good since it gets rid of the lower leg ramp up.

Luftkappe increases negative volume by robbing positive volume, which increases end stroke progressivity. Since you're already running 0 tokens, I wouldn't suggest a luftkappe. The foot stud on the Everflow Tank will reduce lower leg volume. The lower leg ramp up is already decently aggressive on the pike so the Tank will make your fork more progressive.

In theory, everything that increases negative volume in isolation will cause the fork to become more progressive since you will need more pressure to achieve a similar avg spring rate for the first 70% of travel. And since the positive volume is untouched, progression is thus increased. The secus can mitigate these issues and actually decrease progression but it is costly.

If you're constantly hitting the progressive last 20% of your travel try increasing air pressure. It's unintuitive but it'll decrease your dynamic sag so you stay in the more linear region of travel. The fork will be able to absorb more energy at a slower rate of increase which means less harshness.

btw nothing will make your airspring feel like a coil except a real coil.

 

That's very useful info. What would you say is the benefits of the luftkappe?

 

The 2025 Pike has a revised airspring. To allow for a larger negative chamber. I’ve ordered one for my 2023. Still waiting on mine though.

 

Nice, that's probably why I like it being soft at the start, took a little time to get the damping compression right to prevent diving under braking but it's much nicer than stock