Radflo 2.5 Emulsion Coilover Shock – 7/8" Shaft
6CE-001-00
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.
