Radflo 2.5 Remote Reservoir + Eibach Spring Package • 12" Travel • 2 Shocks + 2 Springs
The Radflo 2.5 Remote Reservoir + Eibach Spring Package combines two 12" travel Radflo coilover shocks with two 12" Eibach coilover springs for custom off-road suspension systems. Featuring 2.5" shock bodies, heavy-duty 7/8" Nitro Steel shafts, and remote reservoirs, these coilovers provide increased oil capacity and consistent damping during demanding trail use, rock crawling, and off-road racing.
Each Radflo coilover features a Freeflo Racing Piston, velocity-sensitive valving, and adjustable spring hardware for suspension tuning. The package includes two Eibach 3.0" ID coilover springs with customer-selectable spring rates to match vehicle weight and suspension requirements. Both springs are supplied in the selected rate, providing a single-spring configuration for each shock. The Radflo shocks are fully rebuildable and revalvable for long-term serviceability and suspension tuning.
Includes:
- (2) Radflo 2.5 Remote Reservoir Coilover Shocks – 12" Travel
- (2) Eibach Coilover Springs – 12" Length x 3.0" ID
- Dual-Rate Spring Hardware Included with Radflo Shocks
- Remote Reservoir Assemblies
- Universal Spherical Bearings & Mounting Hardware
Spring Rate Selection: Select your desired Eibach spring rate from the available options. Both springs in this package will be supplied in the selected rate.
Shipping & Assembly: This package ships with the Radflo shocks and Eibach springs packaged separately. Springs are not installed on the shocks. Assembly and suspension setup are required.
Availability: Wide Open Design stocks a selection of Radflo shocks and Eibach springs. Some spring rates, custom valving configurations, and special-order components may require additional production time.
Need help selecting spring rates or confirming availability? Call Wide Open Design for suspension setup assistance.
Specifications
Package Specifications
| Package Type | Radflo Coilover Shock & Eibach Spring Package |
|---|---|
| Shock Manufacturer | Radflo Suspension Technology |
| Spring Manufacturer | Eibach |
| Shock Quantity | (2) Coilover Shocks |
| Spring Quantity | (2) Coilover Springs |
| Spring Configuration | Single Spring Per Shock |
| Spring Rate Selection | Customer Selected; Both Springs Same Rate |
| Spring Hardware | Dual-Rate Hardware Included |
| Assembly | Shocks & Springs Shipped Unassembled |
| Primary Application | Custom Off-Road Coilover Suspension, Rock Crawlers, Buggies & Race Vehicles |
Radflo 2.5 Remote Reservoir Coilover Specifications
| Manufacturer | Radflo Suspension Technology |
|---|---|
| Part Number | 6CR-003-00 |
| Shock Type | Remote Reservoir Coilover |
| Shock Body Diameter | 2.5" |
| Shock Travel | 12" |
| Extended Length | 31.50" |
| Compressed Length | 19.53" |
| Shaft Diameter | 7/8" (0.875") |
| Shaft Material | Nitro Steel |
| Shaft Finish | Mirror Polished |
| Reservoir Type | Remote Reservoir |
| Body Material | SSID Alloy Steel Tube |
| Body Finish | Clear Cadmium Plating |
| Body Caps / Eyelets | CNC-Machined 6061 Aluminum |
| Body Cap Finish | Black Anodized |
| Rod Guide | CNC-Machined Bronze with PTFE Coating |
| Coilover Hardware | Adjustable Spring Preload & Dual-Rate Hardware |
| Piston | Radflo Aluminum Freeflo Racing Piston |
| Seal System | Quad-Ring & Lip Seal |
| Valving Type | Velocity-Sensitive Deflective Disc |
| Valving Tuning | Consumer or Factory Tunable |
| Suspension Fluid | Radflo High-Temperature Foam-Resistant Fluid |
| Pressurization | Nitrogen Gas |
| Published Nitrogen Pressure | 200 PSI |
| Mounting | Universal Spherical Bearings & Hardware |
| Serviceability | Fully Rebuildable & Revalvable |
Shock Dimensions: Published extended and compressed measurements are nominal reference dimensions. Verify mounting dimensions and available suspension clearance before installation.
Eibach Coilover Spring Specifications
| Manufacturer | Eibach |
|---|---|
| Spring Series | 1200.300 |
| Spring Type | Linear-Rate Coilover Spring |
| Free Length | 12" |
| Inside Diameter | 3.0" |
| Spring Rate | Customer Selected from Available Options |
| Spring Material | Chrome Silicon Spring Steel |
| Manufacturing | Cold Wound, Heat Treated & Shot Peened |
| Spring Ends | Squared & Ground |
| Spring Finish | Silver Powder Coat |
| Spring Testing | Individually Rate Tested |
| Spring Quantity | (2) Springs |
| Spring Rate Matching | Both Springs Supplied in Selected Rate |
Spring Selection Note: The selected spring rate applies to both springs in this package. Each coilover receives one 12" Eibach spring. Additional springs are required to build a complete dual-rate spring stack.
Fitment
Universal Fitment for Custom Off-Road Suspension Systems
This package is intended for custom front or rear coilover suspension applications requiring 12" travel Radflo 2.5 remote reservoir shocks and compatible 3.0" ID Eibach springs.
Common Applications:
- Rock Crawlers & Rock Bouncers
- Ultra4 Race Cars
- Custom Tube-Chassis Buggies
- Jeep Suspension Builds
- Trail Rigs & Off-Road Trucks
- Linked Front & Rear Suspension Systems
- Custom Long-Travel Suspension Builds
Fitment & Installation Notes:
- Universal coilover package requiring custom suspension mounting and setup.
- Includes two 12" travel shocks and two 12" long, 3.0" ID Eibach springs.
- Both springs are supplied in the customer-selected spring rate.
- Verify shock compressed length, extended length, mounting dimensions, and chassis clearance before ordering.
- Select spring rate based on vehicle sprung weight, shock angle, suspension motion ratio, and intended ride height.
- Confirm spring preload, available compression, and spring clearance throughout suspension travel.
- Route remote reservoir hoses away from exhaust heat, tires, steering components, and moving suspension parts.
- Proper bump stop placement is required to prevent shocks from becoming the suspension's compression limit.
- Custom shock tabs, mounting brackets, and chassis fabrication may be required.
- Shocks and springs ship unassembled and require installation and suspension setup.
FAQ
What is included in this Radflo and Eibach coilover package?
The package includes two Radflo 2.5 remote reservoir coilover shocks with 12" travel, two Eibach 12" x 3.0" ID coilover springs in the selected rate, remote reservoir assemblies, dual-rate spring hardware, spherical bearings, and mounting hardware.
How do I select my Eibach spring rate?
Select your spring rate from the available options. Both springs in the package will be supplied in the same selected rate.
Are these single-rate or dual-rate coilovers?
This package includes one Eibach spring per Radflo shock, creating a single-spring configuration. The Radflo shocks include dual-rate-capable hardware, but a complete dual-rate spring setup requires additional springs.
Do the shocks and springs arrive assembled?
No. The Radflo shocks and Eibach springs are packaged separately. Springs are not installed on the shocks, and assembly and suspension setup are required.
Why choose a remote reservoir coilover?
A remote reservoir increases the shock's oil and gas capacity while separating the nitrogen charge from the damping fluid. This helps manage heat and maintain more consistent damping during repeated suspension cycling and extended off-road use.
How do I know if 12" travel is correct for my suspension?
Shock travel must be matched to the suspension's measured compression and droop requirements. The Radflo 12" shock has a published extended length of 31.50" and compressed length of 19.53". Verify mounting geometry and available clearance before ordering.
Can I adjust ride height and spring preload?
Yes. Radflo coilovers feature adjustable spring preload hardware, allowing builders to fine-tune ride height and preload within the limits of the suspension design and selected spring package.
Can the Radflo shocks be rebuilt or revalved?
Yes. Radflo 2.5 remote reservoir coilovers are fully rebuildable and revalvable. Internal compression and rebound valving can be tuned to match vehicle weight, suspension geometry, and intended driving conditions.
How do I calculate the correct coilover spring rate?
Spring rate selection depends on sprung vehicle weight, shock angle, suspension motion ratio, and desired ride height. Watch our spring rate calculation guide for help understanding coilover spring selection.
Can I use this package on the front or rear suspension?
Yes. This universal custom suspension package can be used in compatible front or rear coilover applications. Proper shock mounting, spring selection, and suspension geometry must be verified before installation.
