FOX Performance Elite 2.0 Air Shock, 16-Inch, 1-1/4-Inch Shaft, Normal Valving, 40/90 - FOX981-20-052

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 and other applications requiring adjustable, race-proven damping performance. Its air-spring design allows the spring rate to be tuned by varying nitrogen charge pressure, giving builders and drivers greater control over suspension response without changing mechanical springs.

FOX Performance Elite air shocks use the same proven damping technology found throughout the Performance Elite Series, allowing familiar servicing and valving adjustment procedures. The shock is rebuildable and owner serviceable, while custom valving options provide additional tuning flexibility for demanding off-road setups. A lightweight hollow shock shaft helps reduce unsprung weight without compromising strength.

• Adjustable Air Spring Rate: Tune spring rate and ride characteristics by changing nitrogen charge pressure.
• Race-Proven Damping: Performance Elite damping technology supports consistent control in competition off-road applications.
• Lightweight Strength: Hollow shaft construction reduces weight while maintaining durability for demanding terrain.
• Serviceable Design: Rebuildable construction and available custom valving simplify long-term maintenance and suspension tuning.

Key Product Specifications and Technical Data

• Brand: FOX
• Part Number: FOX981-20-052
• Product Type: Performance Elite off-road air shock
• Shock Size: 2.0 inches
• Shock Length: 16 inches
• Shaft Diameter: 1-1/4 inches
• Valving: Normal valving, 40/90
• Finish and Materials: Clear-coated zinc-plated seamless alloy body, black-anodized CNC-machined aluminum components, and hard-chrome-plated 4130 chromoly steel shaft

What's Included

One FOX Performance Elite 2.0 air shock with normal valving. Mounting hardware, nitrogen charging equipment, and vehicle-specific installation components are not included unless supplied by the vehicle manufacturer or selected separately.

Fitment is application-specific and should be verified using suspension travel, mounting configuration, ride height, and vehicle requirements before installation. This product is intended for off-road automotive use and may require professional setup, custom valving, or additional installation components. Service with JM92 MIL-SPEC oil developed for off-road racing applications. This product may contain chemicals known to the State of California to cause cancer or reproductive harm.

Features:

• Adjustable air spring rate through nitrogen charge pressure changes
• Race-proven FOX Performance Elite damping technology
• Lightweight hollow shaft design for reduced unsprung weight
• Rebuildable and owner-serviceable construction with custom valving options

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