Fox Racing Shocks 981-25-402-L Factory Race 2.5 x 10 External Bypass 3-Tube Piggyback Shock (Left)

The Fox Racing Shocks 981-25-402-L is a Factory Race Series 2.5-inch x 10-inch External Bypass piggyback shock absorber, sold as a single left-side unit. Built on more than 30 years of off-road racing heritage, this shock delivers race-proven damping performance and exceptional durability for trucks, SUVs, and dedicated off-road builds.

The 3-tube external bypass design allows oil to flow around the piston at specific points of the stroke, creating precise position-sensitive damping that supports the vehicle through every phase of suspension travel. A piggyback reservoir increases oil and nitrogen capacity to minimize heat buildup and maintain consistent performance even under sustained, high-speed abuse.

Key Features:

• 2.5-inch smooth bore body with dual-coated finish — proprietary FOX Grey Cerakote® protective ceramic coating over a zinc-plated basecoat for superior corrosion resistance and durability
• 3-tube external bypass configuration for externally adjustable, position-sensitive damping tuning
• 17-4 H900 stainless steel piston rod — significantly stronger than industry-standard high-carbon steel, providing exceptional resistance to rock chip damage and wear
• Black-anodized billet aluminum reservoir clamp for lightweight strength and a clean race-inspired appearance
• Gen 3 clicker adjuster with color-coded seals for compression, rebound, and gold valves — simplified for improved durability and serviceability
• Rotating body cap design allows easy repositioning of bypass tubes and piggyback reservoir to clear chassis obstacles during installation
• Fully rebuildable and serviceable — custom valving options available to tailor performance to specific weight, terrain, and speed requirements
• Sold individually as a left-side shock (MPN: 981-25-402-L)

The Fox Factory Race External Bypass shock is engineered for drivers who demand the same level of suspension performance used in off-road racing, delivered in a format compatible with most stock and lifted trucks and SUVs. Its rebuildable construction and custom valving availability make it a long-term performance investment for serious off-road enthusiasts.