Fox Racing Shocks 981-30-412-L Factory Race External Bypass Piggyback Shock - 3.0x12 4-Tube Left

The Fox Racing Shocks 981-30-412-L Factory Race 3.0 x 12 External Bypass Piggyback Shock (Left) is a premium, competition-grade shock absorber engineered for serious off-road racing and high-performance applications. Built around a 3.0-inch main body with a 12-inch stroke, this shock delivers exceptional damping control and heat dissipation under the most punishing race conditions.

The 4-tube external bypass design routes oil through dedicated bypass tubes positioned along the shock body, allowing precise tuning of compression damping at different points in the stroke. This architecture gives racers and builders fine-grained control over ride quality, bottoming resistance, and high-speed compliance — characteristics critical in desert racing, rock crawling, and extreme off-road competition.

The integrated piggyback reservoir provides additional oil and nitrogen gas volume, reducing heat buildup and fade during extended high-intensity use. The left-side orientation (driver side) ensures correct installation geometry and consistent performance.

Key Features:

• 3.0" main shock body for maximum oil capacity and thermal stability
• 12-inch stroke for long-travel suspension applications
• 4-tube external bypass system for precise, position-sensitive damping tuning
• Piggyback reservoir expands fluid and gas volume to reduce fade
• Rebuildable and fully serviceable for long-term race use
• Custom valving options available to match specific vehicle setups and terrain
• Left-side (driver side) specific fitment
• Nitrogen-charged for consistent, aerated-free damping performance
• High-strength aluminum construction for reduced weight and durability

Fox Racing Shocks are the choice of professional off-road racers worldwide, and the Factory Race series represents the pinnacle of their lineup. Whether you're building a prerunner, a Trophy Truck, or a dedicated race vehicle, the 981-30-412-L delivers the tunability and reliability demanded at the highest levels of competition.