Radflo 2.5 emulsion coilover with 7/8 shaft on a white background
Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
Radflo emulsion coilover for rock crawler with &

Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft

6CE-001-00

Regular price$585.00
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Shipping calculated at checkout.


The Radflo 2.5 Emulsion Coilover Shock is designed for custom off-road builds that need more damping capacity, oil volume, and suspension control than a smaller 2.0 coilover can provide. Built around a 2.5" shock body and heavy-duty 7/8" shaft, this shock is well suited for heavier vehicles, larger tires, long-travel suspension systems, and aggressive trail or competition use.

Available in 8", 10", 12", 14", 16", and 18" travel lengths, the emulsion design keeps the oil and nitrogen charge inside the main shock body for a compact, simple package without a remote reservoir. Dual-rate spring hardware is included, while springs are sold separately so the correct rates can be matched to vehicle weight, suspension geometry, and intended use.

Includes:

  • (1) Radflo 2.5 Emulsion Coilover Shock
  • Dual-Rate Spring Hardware
  • Universal Spherical Bearing
  • Mounting Hardware

Note: Eibach Coilover Springs are sold separately. Shocks are sold individually.


Specifications 
Specification Details
Manufacturer Radflo Suspension Technology
Shock Type Emulsion Coilover Shock
Shock Body Diameter 2.5"
Travel Options 8", 10", 12", 14", 16", or 18"
Shaft Diameter 7/8" (0.875")
Application Front or Rear
Body Material SSID Alloy Steel Tube
Body Finish Clear Cadmium Plating
Body Caps / Eyelets CNC-Machined 6061 Aluminum
Cap Finish Black Anodized
Coilover Hardware CNC-Machined Aluminum with Nylatron Spring Slider
Shaft Material Nitro Steel or Mirror-Polished Chromed Rod
Shaft Finish Mirror Polished
Rod Guide CNC-Machined Bronze with PTFE Coating
Piston Radflo Aluminum Freeflo Racing Piston
Seal System Quad-Ring and Lip Seal Combination
Valving Type Velocity-Sensitive Deflective Disc
Valving Consumer or Factory Tunable
Shock Oil Radflo High-Temperature Foam-Resistant Suspension Fluid
Pressurization Nitrogen Gas
Nitrogen Charge 200 PSI
Serviceability Factory Serviceable
Dual-Rate Spring Hardware Included
Coil Springs Sold Separately
Quantity Sold Individually

Fitment 
Application Typical Use
Rock Crawlers Long-travel suspension and low-speed technical terrain
Rock Bouncers Heavy vehicles and repeated high-impact suspension loads
Ultra4 Cars Mixed rock and high-speed off-road use
Jeep Builds Custom coilover conversions and long-travel suspension systems
Off-Road Trucks Heavy trail and performance suspension applications
Custom Tube Chassis Front or rear universal coilover installations

Fitment Notes:

  • Universal coilover shock intended for custom suspension applications.
  • Select travel length based on actual suspension geometry, not lift height alone.
  • Verify compressed and extended shock lengths before ordering.
  • Proper spring rate selection depends on vehicle weight, suspension geometry, motion ratio, and intended use.
  • Coilover springs are sold separately.
  • Verify spring, tire, steering, chassis, and axle clearance throughout the full suspension cycle.
  • Shocks are sold individually; most axle applications require two shocks.
  • Custom valving may be beneficial for heavier vehicles, racing applications, or unusual suspension geometry.

FAQ 

What is the difference between an emulsion coilover and a remote reservoir coilover?

An emulsion shock keeps the oil and nitrogen charge together inside the main shock body, creating a simpler and more compact package. A remote reservoir adds fluid volume and additional heat capacity, which can be beneficial for sustained high-speed use or repeated hard suspension cycling.

What is the advantage of a 2.5 coilover over a 2.0 coilover?

The larger 2.5" body provides more fluid capacity and damping authority, making it better suited for heavier vehicles, larger tires, longer travel, and more aggressive off-road use.

How do I choose the correct travel length?

Cycle the suspension and measure the available distance between the upper and lower shock mounts at full compression and full droop. Choose a shock that remains within its compressed and extended operating range throughout that movement.

Do Radflo 2.5 emulsion coilovers include springs?

No. Dual-rate spring hardware is included, but springs are sold separately so the correct rates and lengths can be selected for the vehicle. Eibach coilover springs are commonly paired with Radflo shocks.

Are Radflo 2.5 emulsion coilovers rebuildable and tunable?

Yes. The shocks are serviceable and the internal valving can be changed to better match vehicle weight, terrain, driving style, and suspension geometry.


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