The Vorsprung Luftkappe air piston kit for Fox Float forks will make noticeable improvements to the feel of your fork. Traction will be increased across chatter, the fork will remain higher in its travel and more stable which will increase comfort and speed out on the trail. 

The Luftkappe enlarges the forks negative air chamber to reduce the initial spring rate. This lets you run higher air pressure for more support in the middle and end of the stroke with improved sensitivity in the start of the stroke.


The Vorsprung Luftkappe works with 

Fox 34 Float NA2 (2016-17) Performance & Factory Series (130mm + only. 120mm and lower need the 2018 Evol air shaft before a Luftkappe can be fitted)
Fox 34 Float NA2 Evol (2018+) Performance & Factory Series
Fox 36 Float NA2 Evol (2018+) Performance & Factory Series 
Fox 36 Float NA (2015-17) Performance & Factory Series (max 180mm travel, min 120mm travel)

This second generation Luftkappe is a new air piston assembly which is user installable and simple to set up, the Luftkappe transforms a good fork into a great fork. 


  • Softer initial stroke
  • Larger negative air chamber
  • Increased sag without the associated diving
  • Coil-like initial & mid-stroke spring rate without excessive bottoming
  • Increased sensitivity
  • Improved mid stroke support & control
  • Superior bump compliance and traction
  • Reduced hand fatigue
  • Reduces required compression damping
  • Retains volume spacer compatibility
  • Optional tools available for self-install


If you're unsure whether the Luftkappe is right for your fork then please feel free to get in touch, we're happy to talk through your best options for getting the most out of your suspension - it's what we do. At Proflow Suspensions we can service your mtb suspension so your bike performs its best riding the trails you love.


"I just wanted to follow up and let you know the Luftkappe and Fractive tune on the fork are incredible.  I have 3 rides on it now and have the settings almost all dialed.  Things I’m noticing so far:

The fork smooths out the small chatter making it much easier on my hands and wrists

large hits are very controlled and it has a much more bottomless feel

the control it gives me going through chunky corners is scary good.  I’ve always liked the feel of the rear suspension on the bike, but it can’t keep up to the fork now in these situations.

I’m a very happy customer!  Thanks for the awesome service."
Steven Wiebe


ProFlow Suspension is the official Vorsprung New Zealand service centre - an elite partner with Vorsprung. Book in with us today for a world class suspension service using Vorsprung suspension products.

Vorsprung Luftkappe - Fox Float 34 | 36