7CR-001-00
The Radflo 3.0 Remote Reservoir Coilover Shock is built for high-demand off-road suspension systems where vehicle weight, tire size, horsepower, suspension travel, and repeated impacts can overwhelm smaller shocks. A massive 3.0" shock body, 1" shaft, and remote reservoir provide the fluid volume, damping capacity, and heat management needed for rock bouncers, Ultra4 cars, prerunners, race vehicles, and heavy custom chassis.
Available in 10", 12", 14", and 16" travel lengths, the Radflo 3.0 coilover is fully rebuildable and revalvable so damping can be matched to the vehicle and adjusted as the build evolves. Dual-rate spring hardware is included, while springs are sold separately so spring rate and length can be selected around actual vehicle weight, suspension geometry, and intended use.
Includes:
Note: Eibach Coilover Springs are sold separately. Shocks are sold individually.
Availability: Popular Radflo shocks may be available from stock, while custom valving, special-order configurations, and certain travel lengths may require approximately 4–6 weeks. Call Wide Open Design for availability.
| Specification | Details |
|---|---|
| Manufacturer | Radflo Suspension Technology |
| Shock Type | Remote Reservoir Coilover Shock |
| Shock Body Diameter | 3.0" |
| Travel Options | 10", 12", 14", or 16" |
| Shaft Diameter | 1.0" |
| Bearing Size | 3/4" |
| 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 |
| Shaft Material | Nitro Steel |
| 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 | Fully Rebuildable and Revalvable |
| Dual-Rate Spring Hardware | Included |
| Coil Springs | Sold Separately |
| Quantity | Sold Individually |
| Application | Typical Use |
|---|---|
| Rock Bouncers | High-horsepower, high-impact suspension systems |
| Ultra4 Race Cars | Competition use combining rocks and high-speed terrain |
| Prerunners / Race Trucks | Extended high-speed suspension cycling and heat generation |
| Heavy Trail Rigs | Large tires, increased vehicle weight, and aggressive terrain |
| Custom Tube Chassis | Long-travel front or rear coilover suspension systems |
| Competition Vehicles | Applications requiring maximum damping capacity and tunability |
Fitment Notes:
The 3.0" shock body provides greater oil volume and damping capacity than a 2.5" coilover. That additional capacity is most useful on heavier vehicles, competition rigs, large-tire builds, and suspension systems that generate significant heat during repeated hard cycling.
A 3.0 coilover makes the most sense when vehicle weight, speed, tire size, horsepower, suspension travel, or repeated impacts place demands beyond what a smaller shock can comfortably manage. Rock bouncers, Ultra4 cars, prerunners, and heavy competition vehicles are common applications.
The reservoir increases available fluid and gas volume while helping manage heat during extended suspension cycling. This improves damping consistency and reduces the likelihood of performance fade during racing or repeated high-energy impacts.
No. Dual-rate spring hardware is included, but springs are sold separately so the correct spring rates and lengths can be selected for the vehicle. Learn how to calculate coilover spring rates.
Yes. The shocks are fully rebuildable and revalvable, allowing seals, oil, nitrogen charge, and internal valving to be serviced or changed as vehicle weight, suspension geometry, or performance requirements evolve.
