SKU: 22533425462

Vorsprung Secus air spring upgrade kit - Fox and RockShox

Sale price$159.30 Regular price$177.00
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

Vorsprung Secus air spring upgrade kit - Fox and RockShoxFor the first time, we created an air spring with a truly better spring rate, everywhere in the travel, than a coil. The Secus upgrade delivers the first and only air spring system to really come indistinguishably close to the linear spring rate of a coil fork for the entire first 2 3rds of its travel, with the advantage of a gentle end stroke progression to prevent bottoming without the wall of force harshness that excessively progressive springs

For the first time, we created an air spring with a truly better spring rate, everywhere in the travel, than a coil. The Secus upgrade delivers the first and only air spring system to really come indistinguishably close to the linear spring rate of a coil fork for the entire first 2/3rds of its travel, with the advantage of a gentle end stroke progression to prevent bottoming without the “wall of force” harshness that excessively progressive springs create.
 
Secus Advantages:
 
  • An enlarged negative air spring chamber delivers a soft, supple initial stroke for ultimate small bump compliance (yes, even compared to the Luftkappe)
  • Proprietary Midstroke Support Valve improves predictability and support beyond the sag point
  • Reduced lower leg pneumatic ramp means better scalability of the air spring, particularly for light riders who previously struggled to use full travel
  • Plush and predictable like a coil, bottomless like an air spring
  • Allows full use of travel in both directions - fully extends to topout without any quibbles (including on Debonair B1 air springs) and fully compresses without excessive ramp
  • Allows more lower leg bath oil to be used for superior lubrication
  • Considerably lighter than coil conversions - adds approximately 130g
  • Simple setup - inflate fork, bounce on it a few times, press MSV charge button, go ride
  • Compatible with OEM volume spacers for end-stroke progression adjustment
  • Compatible with other aftermarket top-cap systems such as DSD Runt and MRP Ramp Control
  • Lower compression ratios mean a more consistent spring rate
  • Transferrable between any Secus-compatible forks with only a footstud to change at most

  •  
    Three Stages of Control
    By independently optimising the beginning, middle and end portions of the stroke, the Secus gives you the linear-to-progressive spring rate that coil springs and traditional air springs alike wish they had. 
  •  
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 22533425462

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    4.5 ★★★★★
    Based on 2196 reviews
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    Verified Purchase
    Miriam Sariol
    Lake Worth, US
    ★★★★★ 5
    Easy to use
    Kinda cool that it brings different size clips and the tool makes it easy to pull the clips out.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 28, 2025
    S
    Verified Purchase
    Stephan F.
    Boise, US
    ★★★★★ 4
    Fit as described
    Used to install an inner fender liner. Seem a little more fragile than OEM, but suitable for the intended use and much less expensive.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on November 8, 2023
    S
    Verified Purchase
    Shawn A Hughes
    Birmingham, US
    ★★★★★ 5
    Fits well, good quality.
    Good assortment for the price; clips fit well.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 10, 2026
    H
    Verified Purchase
    Harold Monroe
    Lake Worth, US
    ★★★★★ 5
    Good
    Works great.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 11, 2026
    B
    Verified Purchase
    B. G.
    Battle Creek, US
    ★★★★★ 5
    Noticeable Improvement in Engine Smoothness
    Size: 150 ml, Pack of 1
    I decided to try LIQUI MOLY Valve Clean to help keep the intake valves clean and maintain engine performance, and I’m really impressed with the results. After adding it to the fuel tank and running through a full tank of gas, the engine felt noticeably smoother and more responsive. It’s very easy to use—just pour it into the fuel tank as directed. I also like that it’s from LIQUI MOLY, a brand known for high-quality automotive additives. While it’s not a miracle fix for serious mechanical issues, it’s a great preventative maintenance product to help reduce deposits and keep the engine running efficiently. I plan to use it periodically as part of my regular maintenance routine.
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    Reviewed in the United States on March 7, 2026

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