FOX Performance Elite 12-Inch Air Shock, 1-1/4-Inch Shaft, Normal Valving, 40/90 - Part Number FOX981-20-050

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 adjustable spring control and 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 flexibility for suspension setup and terrain-specific tuning. This shock uses the same proven damping technology found throughout the FOX Performance Elite off-road series, allowing consistent servicing and valving procedures across compatible FOX shocks.

Part Number FOX981-20-050 features a 12-inch travel design, a 1-1/4-inch shaft, and normal 40/90 valving. A strong yet lightweight hollow shaft helps reduce unsprung weight, while the seamless alloy body is zinc plated and protected by a clear coating for lasting durability. Black-anodized, CNC-machined aluminum components provide precise construction, and the hard-chrome-plated 4130 chromoly steel shaft is built to withstand demanding off-road use. JM92 MIL-SPEC oil supports reliable damping performance in racing conditions.

• Brief Description: Rebuildable and owner-serviceable FOX Performance Elite air shock for competition off-road and rock-crawling applications.
• Key Product Specifications & Technical Data: Brand: FOX; Series: Performance Elite; Part Number: FOX981-20-050; Shock Type: Air shock; Travel: 12 inches; Shaft Size: 1-1/4 inches; Valving: Normal, 40/90; Body Material: Clear-coated, zinc-plated seamless alloy.
• What's Included: One FOX Performance Elite air shock.
• Fitment: Intended for custom off-road suspension applications; vehicle-specific fitment should be confirmed by the installer before purchase. Custom valving options are available through qualified FOX service or tuning providers.

This FOX air shock is rebuildable and serviceable, making it suitable for long-term competition use and suspension development. Professional installation and nitrogen charging are recommended to ensure correct setup, safety, and performance. This product is not CARB approved and may not be legal for use on emissions-controlled street vehicles.

Features:

• Adjustable air spring rate: Tune spring stiffness by varying nitrogen charge pressure for flexible off-road suspension setup.
• Performance Elite damping: Uses race-proven FOX damping technology for consistent control and service compatibility within the Performance Elite off-road series.
• Competition-ready construction: Lightweight hollow shaft and durable alloy body help reduce weight while supporting demanding rock-crawling applications.
• Rebuildable and serviceable: Owner-serviceable design supports maintenance, rebuilds, and custom valving adjustments.

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