Fox Racing Shocks 981-02-427-1 3.0 Factory Race Series 18" Short Course External Bypass Piggyback Shock (4-Tube, Custom Valving, 1.125" Shaft)

The Fox Racing Shocks 981-02-427-1 is a 3.0 Factory Race Series External Bypass Piggyback Shock built for short course off-road racing. Featuring an 18-inch stroke, a 4-tube bypass configuration (2 compression, 1 rebound, 1 Gold Valve free bleed), and a robust 1-1/8-inch diameter shaft, this shock delivers precision, position-sensitive damping with the custom valving needed for competition-level performance.

The Gold Valve bypass tube introduces a free-bleed circuit that fine-tunes the damping curve, smoothing out high-speed impacts while maintaining firm control over body roll and bottoming. Custom valving is set per application, ensuring the shock is tuned specifically for your build rather than relying on a generic off-the-shelf setup.

Key Features:

• 3.0" Body Diameter — Smooth-bore, honed seamless steel body with zinc plating for long-lasting corrosion resistance
• 18" Travel — Extended length: 46.43", Collapsed length: 28.43"
• 4-Tube External Bypass — 2 compression adjusters, 1 rebound adjuster, 1 Gold Valve free-bleed adjuster
• 1-1/8" (1.125") Shaft — Hard chrome-plated 17-4 H900 stainless steel for superior rock chip and corrosion resistance
• Custom Valving (P/B) — Valved per customer application for optimized damping performance
• Piggyback Reservoir — Provides additional oil volume to resist fade during extended high-speed use
• Black Anodized CNC-Machined 6061-T6 Billet Aluminum Components — Lightweight and durable
• Redundant Sealing Pack — Main seal, wiper seal, and scraper seal system using Buna or high-temp Viton seals
• JM92 Advanced Suspension Fluid — Engineered for consistent performance across variable temperatures
• PTFE-Lined, Heat-Treated Alloy Steel Spherical Bearings — Quiet and smooth shock movement under load
• 5/8" Mounting Hardware — 1-1/2" mounting width between tabs with rotating top body cap for easy installation and clearance
• Sold as Each — Single shock absorber

The Fox 3.0 Factory Race Series external bypass shock is the go-to choice for short course racers and serious off-road enthusiasts who demand reliable, tunable performance. With 100% serviceability and re-valvability, this shock is built to be maintained and refined over the life of your build.