Shockwave Parts
Screwless Sealhead Negative Spring Compression Tool
Screwless Sealhead Negative Spring Compression Tool
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Screwless Sealhead Negative Spring Compression Tool
Screwless compression tool designed to safely compress the sealhead against the main piston on shocks that use a negative spring in the damper.
Used during final assembly and bleeding on shocks such as RockShox Vivid, Super Deluxe, EXT, and similar designs.
What This Tool Does
This tool compresses the sealhead against the main piston during reassembly and bleeding.
This step is critical on shocks with a negative spring behind the piston.
- Prevents oil displacement during shaft installation
- Preserves correct IFP depth
- Reduces risk of cavitation or under-filled dampers
Note: The Vivid 6-pin wrench is not included.
Tool Features
- No screws, threads, or fasteners, fully screwless design
- Clip-on arms with integrated pivots and rail guidance
- Fast to install, even while holding the piston in compression
Fit & Finish
This tool locks perfectly into the RockShox Vivid 6-Pin Wrench.
The press-fit alignment keeps the shaft perfectly straight during threading.
Knipex Adapter (Included)
Required for 2023+ Super Deluxe Coil and 2025+ Vivid Coil.
Older counter-measure tools are not compatible with Knipex without a chamferless wrench.
This included adapter clips onto the compression tool and allows use with Knipex 10″ pliers.
Included free, just make sure you already own Knipex.
Usage Tips
- Rotate the clamp to keep bleed ports accessible when needed
- After unclipping, the shaft may drop slightly, this is normal before IFP pressurization
- Always store the tool with the clamps open to reduce long-term fatigue
Compatibility
- RockShox Vivid (Air & Coil)
- RockShox Super Deluxe
- EXT shocks with piston-back negative springs
- Other similar damper designs (verify before use)
Safety Notes
- Always release air spring and IFP pressure before damper work
- High-pressure IFP chambers can cause serious injury if opened pressurized
- Follow official service manuals for your specific shock
- Do not attempt damper work unless you fully understand the system
Related Tools
Disclaimer
This tool is intended for experienced home mechanics.
Improper use may cause injury or equipment damage.
Use at your own risk. See our Terms of Service.
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