Nowadays there are plenty of different options for those, who want to tweak their suspension performance – and now there is one more. While most of the tuning companies try to optimize the internals of the forks and shocks, Vorsprung Suspension takes things a step further and offers a modified air sleeve for Fox shocks. More info in this press release:

Vorsprung Suspension is excited to announce the release of its new Corset air sleeves for Fox air shocks. After more than 2 years of development, the Vorsprung Corset air sleeves allow for far less initial resistance than a standard Fox air sleeve, coupled with substantially improved mid stroke support to eliminate that wallowy feel and initial harshness. Long story short, the Corset’s spring curve is now much closer to that of a coil shock.

The Vorsprung Suspension Corset Air Sleeve reduces the initial resistance
The Vorsprung Suspension Corset Air Sleeve reduces the initial resistance

Designed and tested in Whistler, BC, including racing prototypes in the EWS, the Corset is proudly made in Canada.

Spring Force / Shock Displacement
Spring Force / Shock Displacement
Spring Rate / Shock Displacement
Spring Rate / Shock Displacement

What the Corset offers

  • Less initial resistance means better traction and small bump compliance
  • More mid-stroke support
  • Feels more like a coil shock
  • Livelier, more predictable feel
  • Better big-hit control
  • No more preloaded initial feel
  • No more wallowy midstroke
  • Adjustable ending-stroke ramp using volume spacers (sold separately)
  • Compatible with standard Fox air sleeve seals
  • Easy to install – kit includes air shaft seals
It's compatible with a wide range of Fox air shocks
It’s compatible with a wide range of Fox air shocks


  • Fox Float R, RP, RP2, RP23, RP3, Triad (all years)
  • Fox Float CTD (Large Volume and Small Volume eyelet types)
  • Fox Float X
  • Fox DHX Air

Note: not currently available to suit DRCV shocks. If demand is there, we’ll make them!

Sizes Available:

7.50 x 1.75 | 7.50 x 2.00 | 7.875 x 2.00 | 7.875 x 2.25 | 8.50 x 2.125 (Specialized Enduro) | 8.50 x 2.50

MSRP: $150 CAD (~ $120 USD / ~ 105 Euro)

To find out more about the Corset Air Sleeve (or to order it), visit: Also check out their blog post, explaining how the system works in detail.

Words, photos & graphics: Vorsprung Suspension

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About the author

Aaron Steinke

Aaron was our first employee and actively helped make our company what it is today, significantly shaping the look and direction of our various magazines. Aaron has been pursuing his own projects since mid-2020 but he continues to advise and support us on issues of marketing and technology. For many years, you would usually have found Aaron at casual enduro races, but increasingly you'll find him riding his road bike – long live freedom on two wheels!