Fox Rhythm Air Shaft Assembly
Best suspension upgrade for mountain bikers seeking a smoother ride.
This is the essential internal upgrade for riders looking to dial in their suspension travel to a precise 170mm. While it requires a bit of mechanical know-how to install, it is the most reliable way to restore that plush, responsive feel your fork had on day one.
$78.00
at
Ben's Cycle / FastStore
Who it's for
- Budget-conscious mountain bikers looking to adjust their bike's geometry
- Riders prioritizing factory-spec performance and long-term component durability
- Home mechanics wanting to optimize their suspension for different terrain
Who should skip it
- Owners of high-end Fox Factory or Performance series suspension forks
- Casual cyclists without access to specialized tools or mechanical experience
- Precision-focused tuners seeking infinite adjustability for their front-end height
Performance breakdown
Travel Precision
Delivers exact 170mm travel specifications for consistent suspension geometry.
Build Integrity
OEM-grade construction ensures long-term durability under aggressive riding conditions.
Installation Ease
Requires specific tools and mechanical knowledge for a proper internal swap.
Compatibility Fit
Engineered specifically for the 38 Rhythm chassis for seamless integration.
Suspension Responsiveness
Restores factory-level damping feel and small-bump sensitivity effectively.
Maintenance Value
A cost-effective way to refresh fork performance without replacing the chassis.
Key Specs
Part Type
Air Spring Kit
Fork Travel
170 mm
Stanchion Diameter
38 mm
Suspension Medium
Air
Compatibility
2023 Rhythm 38
Remote Lockout Compatible
No
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