Vorsprung Luftkappe Air Piston

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  • Regular price $105.00
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Make a good fork a great fork.

Introducing the Luftkappe air piston kit for:

- Fox 34, 36 & 38
- Rockshox Pike, Yari and Lyrik Solo Air forks
(compatibility below)

Taking everything we learned with the Corset air sleeves, the Luftkappe is a new air piston assembly that enlarges the 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. User installable and simple to set up, the Luftkappe transforms a good fork into a great fork.

  • Coil-like feel without the harsh bottoming of a completely linear spring
  • Larger negative air chamber
  • Lower initial spring rate
  • Increased sensitivity
  • Improved mid-stroke support & control
  • Superior bump compliance and traction
  • Reduced hand fatigue
  • Reduces required compression damping
  • Retains Bottomless Token compatibility
  •  

    Compatibility 

    

    Dual Position Air (DPA) forks of any year Not Compatible
    Rockshox Pike / Revelation < 2014 Not Compatible
    Rockshox Pike / Revelation 2014 (Solo Air) all wheel sizes LK - A1
    Rockshox Pike / Revelation 2015 (Solo Air) all wheel sizes LK - A1
    Rockshox Pike / Revelation 2016 (Solo Air) all wheel sizes LK - A1
    Rockshox Pike / Revelation 2017 (Solo Air) all wheel sizes LK - A1
    Rockshox Pike / Revelation 2018 - Debonair ONLY - all wheel sizes LK - A2
    Rockshox Pike / Revelation 2019 + (Debonair) all wheel sizes In order to fit a Luftkappe to a MY2019+ Pike / Revelation, you will need to remove the MY2019+ air shaft assembly and retrofit the previous generation Solo Air spring shaft (available separately - not through our web store). Rockshox part numbers are as follows:

    For 2019+ Pike/Revelation of ANY wheel size, use Luftkappe A2 variant with:

    11.4018.026.030 - Air Shaft Solo Air - PIKE B1/Revelation A1 (120mm 29/27)
    11.4018.026.031 - Air Shaft Solo Air - PIKE B1/Revelation A1 (130mm 29/27)
    11.4018.026.032 - Air Shaft Solo Air - PIKE B1/Revelation A1 (140mm 29/27)
    11.4018.026.033 - Air Shaft Solo Air - PIKE B1/ Revelation A1 (150mm 29/27)
    11.4018.026.034 - Air Shaft Solo Air - PIKE B1/Revelation A1 (160mm 29/27)

    OR use Luftkappe A1 variant with:

    11.4018.026.011 - Air Shaft Solo Air - PIKE (120mm 27.5)
    11.4018.026.010 - Air Shaft Solo Air - PIKE (130mm 27.5)
    11.4018.026.003 - Air Shaft Solo Air - PIKE (140mm 27.5)
    11.4018.026.000 - Air Shaft Solo Air - PIKE (150mm 27.5)
    11.4018.026.001 - Air Shaft Solo Air - PIKE (160mm 27.5)
    Rockshox Lyrik / Yari < 2015 Not Compatible
    Rockshox Lyrik / Yari 2016 (Solo Air) all wheel sizes LK - A1
    Rockshox Lyrik / Yari 2017 (Solo Air) all wheel sizes LK - A1
    Rockshox Lyrik / Yari 2018 - Solo Air & Debonair - all wheel sizes LK - A1
    Rockshox Lyrik / Yari 2019+ (Debonair) all wheel sizes LK - A1 + Airshaft (Solo Air)

    In order to fit a Luftkappe to a MY2019+ fork, you will need to remove the MY2019+ air shaft assembly and retrofit the previous generation Solo Air spring shaft (available separately - not through our web store). Rockshox part numbers are as follows:

    11.4018.026.001 - Air Shaft Solo Air - Lyrik/Yari(150mm)
    11.4018.026.004 - Air Shaft Solo Air - Lyrik/Yari (160mm)
    11.4018.026.002 - Air Shaft Solo Air - Lyrik/Yari (170mm)
    11.4018.026.020 - Air Shaft Solo Air - Lyrik B1/Yari (180mm)
    Rockshox Boxxer Not Compatible
    Fox Talas forks Not Compatible
    Fox 32 Not Compatible
    Fox 34 <2016 Not Compatible
    Fox 34 2016 (Float NA2) - Performance & Factory Series - 120mm & lower Need 2018 EVOL airshaft, use LK-34/38EVOL
    Fox 34 2016 (Float NA2) - Performance & Factory Series - More than 130mm LK-34NA
    Fox 34 2017 (Float NA2) - Performance & Factory Series - More than 130mm LK-34NA
    Fox 34 2018+ (Float NA2 Evol) - Performance & Factory Series LK-34/38EVOL
    Fox 36 <2015 Not Compatible
    Fox 36 2015 (Float NA) - Performance & Factory Series LK-36NA
    Fox 36 2016 (Float NA) - Performance & Factory Series LK-36NA
    Fox 36 2017 (Float NA) - Performance & Factory Series LK-36NA
    Fox 36 2018+ (Float NA2 Evol) - Performance & Factory Series LK-36EVOL

    Note: If your MY2018 36 Evol tops out noticeably, you will need to replace your air shaft assembly before purchasing the Luftkappe. For 2019 onwards, Fox have updated this part due to the topout issues that many of the 2018 36 Evol forks had. 34 forks do not have this issue.

    Relevant Fox part numbers for the new air shaft assemblies, by travel:
    180mm: 820-02-534-KIT
    170mm: 820-02-535-KIT
    160mm: 820-02-536-KIT
    150mm: 820-02-537-KIT
    140mm: 820-02-538-KIT
    100mm (36 831): 820-02-539-KIT

    If your fork does not have noticeable top-out issues, you don't need to replace the shaft before installing the Luftkappe.
    Fox 36 (Float NA2 Evol) E-bike Specific [SPD-PED-ELEC] Note that this fork usually requires the 34 Float NA2 Evol Luftkappe due to its thicker stanchions having a smaller ID.
    Exceptions exist - eg Giant e-bikes, which still use the 36 Float NA2 Evol Luftkappe as they are standard 36s despite the e-bike stickers on the fork.
    Fox 40 Not Compatible
    Fox Rhythm Series forks Not Compatible
    Marzocchi Z1 Not Compatible
    Fox 34 Stepcast (2019+) LK-34/38EVOL
    Fox 38 (2021+) LK-34/38EVOL