Fox Racing Shocks 981-35-407-R Factory Race External Bypass Piggyback Shock - 3.5x18 5-Tube Right

The Fox Racing Shocks 981-35-407-R Factory Race 3.5" x 18" External Bypass Piggyback Shock is a high-performance, competition-grade shock absorber engineered for extreme off-road racing and demanding trail applications. Featuring a large 3.5-inch body diameter paired with 5-tube external bypass technology, this right-side shock delivers precise, tunable damping control across the full range of suspension travel.

External bypass shocks route oil through external tubes at predetermined points in the shock stroke, allowing independent tuning of compression damping at different stages of suspension travel — low-speed compliance, mid-stroke control, and bottom-out resistance can each be dialed in separately. The 1-inch bypass tubes provide high-flow oil passages for consistent, fade-resistant performance under sustained high-speed abuse.

The integrated piggyback reservoir increases total oil volume, reducing heat buildup and virtually eliminating the fade associated with standard monotube or twin-tube designs during long, punishing race stages.

Key Features:

• 3.5" body diameter for maximum oil capacity and heat dissipation
• 18" stroke for long-travel suspension setups
• 5-tube external bypass configuration with 1" bypass tubes for multi-stage compression tuning
• Piggyback reservoir increases fluid volume and reduces operating temperatures
• Right-side specific mounting orientation (MPN: 981-35-407-R)
• Fully rebuildable and serviceable for extended service life and race-day maintenance
• Custom valving options available to suit specific vehicle weight, suspension geometry, and terrain
• Constructed to Fox Racing Shocks' Factory Race quality standards for professional and enthusiast off-road use

Whether you're building a dedicated race truck, a pre-runner, or a high-clearance overland rig that demands the best in suspension technology, the Fox 981-35-407-R delivers the tuneability, durability, and performance that Fox Racing Shocks is renowned for in off-road competition worldwide.