What does the piggyback reservoir do?

The piggyback reservoir holds extra shock fluid and helps dissipate heat generated during suspension travel. This keeps the shock oil cooler, which leads to more consistent damping performance, especially during demanding off-road use or high-speed driving.

Can this shock be rebuilt?

Yes, this Fox 2.5 Factory Series coilover is designed to be rebuildable and serviceable. This means you can maintain its performance over time by replacing seals and fluid, rather than needing to replace the entire unit.

What does the '50/70' designation mean?

The '50/70' designation typically refers to the spring rate configuration for this coilover. It indicates a dual-rate spring setup, with a 50 lb/in spring and a 70 lb/in spring, designed to provide a balance of ride comfort and bottom-out resistance.

Fox 2.5 Factory Series 10in. Piggyback Reservoir Coilover Shock 7/8in. Shaft (50/70) - Black

Specifications

Brand: FOX
Part #: 980-02-163
UPC: 714686854467

Fox 2.5 Factory Series 10in. Piggyback Reservoir Coilover Shock 7/8in. Shaft (50/70) - Black

Name: Fox 2.5 Factory Series 10in. Piggyback Reservoir Coilover Shock 7/8in. Shaft (50/70) - Black
Brand: FOX
SKU: fox-fox-2-5-factory-series-10in-piggyback-reservoir-coilover-shock-7-8in-shaft-5-t14-179027
Price: 769.95 USD
Availability: BackOrder

$769.95

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Fox 2.5 Factory Series 10in. Piggyback Reservoir Coilover Shock. Race-winning technology for consistent performance.

Key Features

This is a Fox 2.5 Factory Series 10-inch coilover shock with a piggyback reservoir.
Features a 7/8-inch chrome-plated, heat-treated alloy steel shaft for durability.
The shock body is constructed from durable, zinc-plated seamless alloy.
Components are made from black anodized CNC-machined aluminum.
The piggyback reservoir helps manage heat for consistent performance.
This coilover is rebuildable and serviceable for long-term use.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Product Details

The chrome-plated, heat-treated alloy steel shaft on this Fox 2.5 Factory Series coilover shock is built to handle serious punishment. This isn't just about looks; it's about providing consistent damping performance and suspension control whether you're flying over desert terrain or navigating a tough rock climb. The 10-inch body and piggyback reservoir work together to manage heat effectively, ensuring reliable performance when you need it most.

Fox devotes countless hours to research and development, packing race-winning technology into this coilover. The durable, zinc-plated seamless alloy body resists corrosion, while the black anodized CNC-machined aluminum components ensure everything stays tight and functional. This shock is rebuildable and serviceable, meaning you can maintain its performance over the long haul. Custom valving options are also available, allowing you to fine-tune the damping characteristics to your specific driving style and terrain.

This coilover is designed for serious off-road use. The 360-degree rotatable piggyback bridge allows for flexible mounting options. While this shock is sold individually, consider that a complete suspension system often requires matching front and rear components for balanced handling. Refer to the manufacturer's documentation for specific installation details and any recommended hardware or related components.