Shockwave Parts
Screwless Sealhead Negative Spring Compression Tool
Screwless Sealhead Negative Spring Compression Tool
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ScrewLess Sealhead Negative Spring Compression Tool
Always keep the clamps open when storing the tool. This prevents unnecessary stress and fatigue that could cause the clip arms to crack or weaken over time.
Working on damper internals is dangerous. Most modern shocks, including RockShox use high-pressure IFP chambers that can cause serious injury if opened while pressurized.
- Always release both the air spring pressure and the damper IFP pressure before disassembly
- Consult official service documents from your shock's manufacturer
- Do not attempt damper work unless you are confident in your tools, technique, and understanding of suspension systems
Β What This Tool Does
This screwless compression tool is used to compress the sealhead against the main piston during reassembly and bleeding. This is critical for shocks that use a negative spring behind the main piston (such as RockShox Vivid, Super Deluxe, and EXT models).
The Vivid 6-pin wrench is not included.
- Allows proper sealhead positioning so that the shaft doesnβt displace oil during reassembly
- Ensures IFP depth is preserved and prevents bottom-out or cavitation from under-filled dampers
- Supports many shock brands,Β including RockShox, EXT, and other high-end models with negative spring systems
Β Tool Features
- No screws, threads, or fasteners, just pull and clip with your hands
- Clamps use a rail mechanism with in-place printed pivots, no play, no metal, just clever tolerances
- Extremely easy to use and fast to install, even while holding the piston in compression
Knipex Adapter Included
Need to rebuild a 2023+ RockShox Super Deluxe Coil or the new 2025+ Vivid Coil? The old counter-measure official tool doesnβt work anymore because it's not compatible to the knipex unless you get their official new chanferless wrench...
Weβve added a custom 3D-printed adapter that clips onto the negative spring compression tool and lets you use Knipex 10" pliers instead. Works best with the jaws almost parallel.
Included free with every tool, no need to buy anything else. Just make sure you have Knipex, it's very important!
Β Usage Tips
- Use this during the final bleeding steps after threading in the shaft and before setting IFP depth
- For newer Super Deluxe and other shocks with bleed ports near the sealhead, rotate the clamp so that the bleed port remains accessible
- Keep the clamps open when storing the tool to reduce long-term fatigue and preserve clip integrity
- Don't worry, when you will unclip the tool after the assembly bleed, the shaft will come down a little, it's normal, there is no pressure in the IFP yet so the negative spring pushes on the sealhead.
Β Compatibility
- RockShox Vivid (Air & Coil)
- RockShox Super Deluxe
- EXT shocks with negative springs
- Other brands using piston-back negative springs (check your model before use)
Β Related Tools
- Vivid 6-Pin Socket Wrench : View Product
- Compression Tool Replacement Rails : View Product
- Compression Tool Clamp Replacements : View Product
Disclaimers
This tool is intended for experienced home mechanics only. Do not attempt damper disassembly without proper knowledge and precautions. Misuse may result in injury or permanent equipment damage. Use at your own risk. By proceeding, you agree to our Terms of Service.
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