Fox Racing Shocks 981-30-415-L Factory Race External Bypass Piggyback Shock - 3.0x18 4-Tube Left

The Fox Racing Shocks 981-30-415-L is a Factory Race Series 3.0" x 18" External Bypass (4-Tube) Piggyback Shock designed for serious off-road racing and high-performance suspension applications. Sold individually as a left-side unit, this shock is engineered for competitors and enthusiasts who demand race-proven damping control under the most punishing conditions.

Fox's external bypass design uses four externally mounted bypass tubes to deliver position-sensitive damping. The bypass tubes are individually adjustable, allowing precise tuning of compression and rebound force at specific points throughout the shock's travel. This means a compliant, controlled ride through normal terrain and aggressive, progressive resistance when it matters most at the extremes of travel.

Key Features:

• 3.0" bore body — impact-extruded and CNC-machined 6061-T6 hard-anodized aluminum for maximum strength and corrosion resistance
• 18" stroke — extended travel for demanding long-travel off-road suspension setups
• 4-tube external bypass — four independently adjustable bypass tubes for fine-tuned, position-sensitive damping control
• Piggyback reservoir — integrated piggyback-style reservoir for increased oil volume and superior heat dissipation during extended high-speed use
• 17-4 H900 stainless steel shaft — significantly stronger than standard high-carbon steel rods, resisting damage from rock chips and debris
• High-temp Viton seals and proprietary racing oil — engineered to maintain consistent damping performance under extreme heat and load
• Color-coded adjuster seals — Gen 3 bypass tube clickers feature color-coded seals for quick identification of compression, rebound, and gold valve circuits
• Dual Cerakote® protective coating — proprietary FOX Grey Cerakote® ceramic coating over zinc-plated basecoat for enhanced durability and corrosion protection
• Fully rebuildable and serviceable — designed for long-term use with rebuild and revalve support available
• Custom valving options available — can be valved to specific vehicle weight, terrain, and driving style requirements

This shock is sold as a single left-side unit. A matching right-side shock is available separately. Built to the same specification as Fox's race-winning Trophy Truck shocks, the Factory Race Series External Bypass is the choice of professional off-road racers worldwide.