FOX Performance Elite 16-Inch Air Shock, 1-5/8-Inch Shaft, Normal Valving, 40/80 - FOX981-25-053

The design of the off-road Performance Elite air shock allows for infinite adjustability of the spring rate by varying the nitrogen charge pressure. FOX's first air shock was invented by Bob Fox back in 1974 and has been highly refined in the 30-plus years we’ve been producing them. The off-road Performance Elite air shock uses the identical race-proven performance damping technology as our other Performance Elite Series off-road shocks, so servicing and valving adjustments are the same. Incredibly strong yet lightweight hollow shock shafts further reduce weight on these shocks that are ideal for competition rock crawlers. Rebuildable and serviceable. Custom valving options available.

• JM92 MIL-SPEC oil developed specifically for off-road racing
• Durable clear coated, zinc plated seamless alloy body
• Durable Clear Coated; Zinc Plated Seamless Alloy Body
• Black Anodized CNC Machined Aluminum Components
• Hard Chrome Plated 4130 Chromoly Steel Shaft
• Hard chome plated 4130 chromoly steel shaft
• Owner serviceable and rebuildable

The FOX Performance Elite air shock is designed for off-road competition vehicles, including rock crawlers that demand lightweight construction, tunable spring rates, and race-proven damping performance. Its air-spring design allows the spring rate to be adjusted by varying nitrogen charge pressure, providing a broad range of tuning options without changing mechanical springs. The shock uses FOX Performance Elite damping technology for consistent control and compatibility with established service and valving procedures.

Built for demanding off-road use, the FOX981-25-053 features a durable seamless alloy body with a clear-coated, zinc-plated finish, black anodized CNC-machined aluminum components, and a hard chrome-plated 4130 chromoly steel shaft. The hollow shaft design helps reduce weight while maintaining the strength needed for severe competition environments. JM92 MIL-SPEC oil, developed for off-road racing, supports dependable damping performance across demanding operating conditions.

This FOX air shock is owner-serviceable and rebuildable, making routine maintenance and long-term performance support more convenient. Custom valving options are available for applications requiring specialized suspension tuning. The package is supplied as one automotive air shock and is intended for off-road performance applications. Professional installation and setup are recommended to ensure proper mounting, nitrogen charging, valving, and vehicle compatibility.

Key Product Specifications & Technical Data

• Brand: FOX
• Part Number: FOX981-25-053
• Product Type: Performance Elite off-road air shock
• Shock Travel: 16 inches
• Shaft Diameter: 1-5/8 inches
• Valving: Normal valving, 40/80
• Body and Shaft Materials: Seamless alloy body with 4130 chromoly steel shaft
• Serviceability: Owner-serviceable and rebuildable

What's Included

• One FOX Performance Elite air shock

Fitment data was not provided. Verify mounting style, compressed and extended travel, clearance, nitrogen pressure requirements, and vehicle-specific suspension setup before installation.

Features:

• Adjustable Air Spring Rate: Varying nitrogen charge pressure allows fine adjustment of the spring rate for different vehicle weights, terrain, and driving conditions.
• Race-Proven Performance Elite Damping: Uses FOX off-road damping technology for controlled suspension performance and service procedures consistent with other Performance Elite shocks.
• Lightweight Competition Construction: A hollow, hard chrome-plated 4130 chromoly steel shaft helps reduce weight while providing high-strength performance for demanding off-road use.
• Serviceable and Rebuildable Design: Owner-serviceable construction supports maintenance, rebuilding, and available custom valving for specialized suspension requirements.

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1