The Ultimate Guide to Upgrading Your Fork with Fox GRIP X or GRIP X2 Dampers
Upgrading your mountain bike suspension can dramatically transform your riding experience, and Fox's GRIP X and GRIP X2 dampers represent the pinnacle of suspension performance. These dampers are designed to provide precision, adjustability, and smoother operation, setting a new standard in fork technology. Whether you're looking to enhance your Fox 34, Fox 36, Fox 38, or Marzocchi Bomber Z1 fork, this guide will walk you through everything you need to know before making the leap.
Why Upgrade to the GRIP X or GRIP X2 Damper?
The Fox GRIP X2 damper is widely regarded as the most adjustable and high-performing option in the market today. With low-speed and high-speed adjustments for both compression and rebound, it allows for a level of customisation that meets the demands of aggressive riders tackling technical terrain. Compared to its predecessor, the GRIP2, the GRIP X2 delivers improved smoothness, enhanced durability, and a 125-hour service interval, ensuring peak performance for longer.
For riders seeking a lighter option with simplified adjustability, the GRIP X damper offers a streamlined yet high-performing alternative, catering to all-mountain and trail enthusiasts.
Fork Compatibility for GRIP X and GRIP X2 Dampers
Fork Model | Compatibility Requirements |
Fox 34 | 2016 models or newer (excluding Rhythm and Step-Cast series). |
Fox 36 | 2015 models or newer. |
Fox 38 | Compatible with all models. |
Fox 40 | 2020 models or newer (GRIP X2 only). |
Marzocchi Bomber Z1 | 2019 models or newer. |
Pro Tip: If your fork is approaching its 125-hour service interval, consider performing a full rebuild while upgrading the damper for the best results.
Tools and Materials You'll Need
Here’s a quick breakdown of tools and materials based on the type of service:
For a Full Fork Rebuild:
Shopping List | Required Tools | Required Parts |
Full Rebuild | - Allen wrenches - Shock pump - Torque wrench - Socket wrench - 15mm, 12mm, 10mm sockets - Chamferless sockets: - 26mm: GRIP Damper, Fox 34 Air Spring - 28mm: GRIP X2, GRIP X, GRIP2 Dampers - 32mm: RC2 Damper, Fox 36/38 Air Spring - Fox Seal Drivers - Rubber mallet - Pin spanner - Bucket - Pick - Lint-free rags - Rubber gloves - Safety glasses - Downhill tyre lever - Flathead screwdriver - Wooden or plastic dowel - Slickoleum - Maxima SC1 - Syringe - Propane torch or heat gun (torch preferred) - Shaft clamps (Part #803-01-324) | - GRIP X or X2 Damper - Air spring rebuild kit: - Fox 38 - Marzocchi Bomber Z1 - Fox 36: - 2015-2017 models - 2017-current models - Fox 34 - Dust Wiper kit: - Fox 38 - Fox 36/Bomber Z1 - Fox 34 - Fork Oil |
Damper Replacement | - Allen keys - Torque wrench - Socket wrench - 15mm socket - Chamferless sockets: - 26mm: GRIP Damper, Fox 34 Air Spring - 28mm: GRIP X2, GRIP X, GRIP2 Dampers - 32mm: RC2 Damper, Fox 36/38 Air Spring - Rubber mallet - Bucket - Lint-free rags - Rubber gloves - Safety glasses - Wooden or plastic dowel - Slickoleum - Maxima SC1 - Syringe | - GRIP X or X2 Damper - Fork Oil |
Why Performance Matters
Upgrading to a GRIP X or GRIP X2 damper provides more than just smoother rides—it allows riders to push their limits with confidence. High-speed adjustments let you conquer big hits and technical descents, while low-speed settings offer stability and control on climbs and flowy trails.
Final Thoughts and Call to Action
Upgrading your Fox fork with a GRIP X or GRIP X2 damper is one of the most impactful modifications you can make to your bike. With the right tools, a bit of patience, and guidance from Fox’s comprehensive manuals, this upgrade is achievable even for dedicated home mechanics.
Have you upgraded your fork recently or have tips for fellow riders? Share your experiences in the comments below, and don’t forget to spread the word by sharing this guide with your riding buddies. For detailed tutorials, product recommendations, and tuning advice, explore our full range of suspension setup resources on our website!
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