SKU: 22533425462

Vorsprung Secus air spring upgrade kit - Fox and RockShox

$159.30 $177.00
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Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

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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. 

  • Initial stroke - enlarged negative air spring chamber delivers a soft, supple initial stroke for ultimate small bump compliance

    Midstroke - where traditional air spring rates drop off in the midstroke, our proprietary Midstroke Support Valve technology boosts the midstroke spring rate to maintain linearity, for support, predictability, ride height and compliance

    End stroke - enlarged lower leg volume reduces overall progression even at higher pressures and allows for a wider range of end-stroke ramp options to be utilised with standard fork volume spacers.

    •  
    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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    4.0 ★★★★★
    Based on 211 reviews
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    Verified Purchase
    Randy H.
    New York, US
    ★★★★★ 5
    They last for months
    Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
    This is my second order of this product. I have 2 medium size dogs and they love them. The nice thing is a 3 pack of these is that they will last them for a few months.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 9, 2026
    K
    Verified Purchase
    Kirsten Kramer
    Belleville, US
    ★★★★★ 4
    Bones
    Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
    Great product but my dogs don't seem to be interested
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 2, 2026
    C
    Verified Purchase
    CMT
    Birmingham, US
    ★★★★★ 5
    Indestructible
    Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
    Finally found a chew bone strong enough for our pit mix, would highly recommend for an agressive chewer! Will buy again
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 12, 2026
    L
    Verified Purchase
    Leslie Z.
    Natrona Heights, US
    ★★★★★ 5
    My four approve
    Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
    My dogs, which I have 4, 2 labradors, one Jack Russell and one medium smallish mixed breed dog, all really love the bones. Three of them seem to be vigorous chewers the mixed breed girl being the toughest one on bones. These bones are holding up really well and the dogs really seem to like them. The dogs have not been able to get any big chunks off of the bones so I feel safe letting them have them even when I’m not watching. I would recommend these to Pet owners.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 22, 2026
    J
    Verified Purchase
    Jamie Jett
    Cuba, US
    ★★★★★ 3
    Size
    Color: 3PC-Bacon-Brown, Pattern Name: Tough Dog Toys
    I have a medium sized dog and these were to big for him. A bigger dog would love them. Great for chewers.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 23, 2026

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