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Fox Racing Shox

Fox 34 STEP CAST NA2 EVOL Air Shaft Assembly

Fox 34 STEP CAST NA2 EVOL Air Shaft Assembly


Regular price £43.95
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Fox 34 STEP CAST 2019 NA2 EVOL Air Shaft Assembly 

Suitable for all Fox 34 SC Forks.

Year Float Air Spring
 2021 Fox 34 NA2 SC

2020 Fox 34 NA2 SC

2019 Fox 34 NA2 SC


Shaft Assemblies can be used to increase or reduce the fork travel for both 27.5" and 29" wheel models.


When adjusting your fork travel you are also adjusting the ratio between:

Air Chamber Volume: Wheel Travel 

For example, if you reduce your wheel travel you need to increase the number of Volume spacers to maintain the same level of progression.
To purchase volume spacers click here

Lower Leg Service

To fit the air shaft the lowers will need removing, why not carry out a lower leg service? Lower leg service kits here

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Why J-Tech?

Comprehensive Servicing and Tuning
J-TECH offers servicing and tuning for a diverse range of suspension products, ensuring a broad spectrum of customer needs can be met.

Highest Standards
The standard of servicing and tuning provided by J-TECH is unparalleled, representing the best in the industry.

Data-Driven Approach
Leveraging years of experience and data from extensive data logging and dyno testing, J-TECH provides a calculated service, eliminating guesswork, myths, and hype for a job done with the utmost precision.

Athlete Support
J-TECH backs up its expertise by supporting athletes at all levels, including a world cup DH team, DH world cup riders, and EWS riders, demonstrating their commitment to excellence.

In-House Brand
With their own brand of suspension upgrades, tooling, and spare parts at, J-TECH consolidates their experience and knowledge to offer high-quality products, aiming to optimize your suspension for peak performance.

Continuous Innovation
J-TECH is at the forefront of new technologies, constantly pushing the boundaries to provide customers with the best possible service, ensuring they stay ahead in the dynamic field of suspension technology.