FOX 2.0 Factory Series 2-Inch Bump Stop with 1-1/4-Inch Shaft, Pinch Mount - 981-20-040

FOX devotes countless hours of research and development to design race-winning suspension that withstands incredible punishment and provides consistent performance you can rely on. Regardless of whether you are flying high over the desert or struggling to stick to a rock face on an off-camber climb, our shocks will give you the damping performance, suspension control and proper spring rate to get the job done. Rebuildable and serviceable. Custom valving options available. Uncompromised performance through FOX’s patented internal bypass technology delivers the feel of near-endless suspension travel. Exclusive internal bypass technology allows oil to flow around the piston at some points of the stroke – while creating humongous pressure at other points – supporting the vehicle like no other product can. Floating through terrain is accomplished with FOX’s ride zone – combining a race-developed shock piston, internal bypass and Dual Speed Compression adjustment – allowing fine tuning for weight, terrain and speed. Dominate any terrain with the brute strength of 3- and 2.5-inch aluminum bodies, cactus cooler reservoirs and 7/8” shafts with redundant seals, all proven in the harshest of environments under the toughest of conditions.

• NEW proprietary Cerakote® protective ceramic coating over zinc plated basecoat
• JM92 MIL-SPEC oil developed specifically for off-road racing
• Black Anodized CNC Machined Aluminum Components
• Hard Chrome Plated 4130 Chromoly Steel Shaft
• Hard chome plated 4130 chromoly steel shaft
• Owner serviceable and rebuildable

The FOX 2.0 Factory Series bump stop is engineered to provide reliable bottom-out control during demanding off-road driving. Designed for race vehicles, trucks, and custom suspension applications, the FOX 981-20-040 combines consistent damping performance with a durable construction that withstands repeated impacts, harsh terrain, and high-speed suspension cycling. Its pinch-mount design supports secure installation where compatible mounting hardware and vehicle clearance are available.

FOX internal bypass technology helps manage damping through different portions of the stroke, allowing the bump stop to deliver controlled support as suspension compression increases. A race-developed piston, internal bypass design, and Dual Speed Compression adjustment work together to help tune performance for vehicle weight, terrain, and driving speed. The unit is owner serviceable and rebuildable, and custom valving options are available for specialized suspension setups.

The FOX 981-20-040 features a durable aluminum body, a hard chrome-plated 4130 chromoly steel shaft, redundant seals, and black anodized CNC-machined aluminum components. A proprietary Cerakote protective ceramic coating over a zinc-plated basecoat helps resist wear and corrosion, while FOX JM92 MIL-SPEC oil is formulated specifically for off-road racing applications. Confirm vehicle fitment, mounting configuration, shaft clearance, and suspension travel before installation.

What's Included: One FOX 2.0 Factory Series bump stop assembly. Mounting hardware and vehicle-specific installation components are not specified and may be required separately.

Fitment: Universal/custom off-road suspension component. Vehicle-specific fitment must be verified by mounting style, available clearance, suspension travel, and application requirements.

Features:

• Internal bypass technology: Provides progressive damping support through the stroke for improved bottom-out control and suspension consistency.
• Dual Speed Compression adjustment: Allows tuning for vehicle weight, terrain, and driving speed.
• Durable off-road construction: Combines an aluminum body, black anodized CNC-machined components, and a hard chrome-plated 4130 chromoly steel shaft.
• Serviceable and rebuildable design: Supports owner maintenance, rebuilding, and custom valving options for long-term performance.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1