2.5 Emulsion Coilover (x2) & Dual Rate Spring (x4) Package – 14" Travel
The 2.5 Emulsion Coilover & Dual-Rate Spring Package – 14" Travel combines two Radflo 2.5 emulsion coilovers with four Eibach 3.0" ID coilover springs for rock crawlers, trail buggies, rock bouncers, and custom tube chassis vehicles that need increased suspension travel and damping capacity without the added packaging of remote reservoirs. The larger 2.5" shock body provides more oil volume than a 2.0" coilover, while 14" of travel gives linked suspension systems additional articulation and wheel movement for technical terrain.
Each coilover uses two springs to create a true dual-rate spring stack that can be tuned for ride height, initial compliance, and support deeper into compression. The emulsion design keeps the shock package simple by containing the oil and nitrogen charge within the main shock body, making this a strong choice for aggressive crawling and trail use where suspension travel and tunability matter more than the additional heat capacity of a remote reservoir system.
Includes:
- (2) Radflo 2.5 Emulsion Coilover Shocks – 14" Travel
- (4) Eibach 14" x 3.0" ID Coilover Springs – Two Springs Per Shock
- Dual-Rate Spring Hardware
- Universal Spherical Bearings
- Shock Mounting Hardware
Spring rates are selected when ordering from available 100–500 lb/in options.
Availability: Wide Open Design stocks a large selection of Radflo shocks and Eibach springs for immediate shipment. Some spring rates, custom valving configurations, and special-order suspension components may require additional production time.
Need help selecting spring rates or confirming availability? Call us for current inventory and suspension setup assistance.
Specifications
| Specification | Details |
|---|---|
| Package Type | Emulsion Coilover & Dual-Rate Spring Package |
| Shock Part Number | 6CE-004-00 |
| Shock Quantity | (2) |
| Shock Type | Emulsion Coilover |
| Shock Body Diameter | 2.5" |
| Shock Travel | 14" |
| Extended Length | 35.43" |
| Compressed Length | 21.50" |
| Shaft Diameter | 7/8" |
| Reservoir | None – Emulsion Design |
| Shock Valving | Velocity-Sensitive Deflective Disc |
| Shock Tuning | Consumer or Factory Tunable |
| Shock Body Material | SSID Alloy Steel Tube |
| Body Caps / Eyelets | CNC-Machined 6061-T6 Aluminum |
| Cap Finish | Black Anodized |
| Shock Rod Material | Nitro Steel |
| Shock Fluid | High-Temperature Foam-Resistant Suspension Fluid |
| Pressurization | Nitrogen Charged |
| Shock Serviceability | Fully Rebuildable & Revalvable |
| Spring Series | EIB1400.300.0xxxS |
| Spring Quantity | (4) – Two Springs Per Coilover |
| Spring Configuration | Dual Rate |
| Spring Free Length | 14" |
| Spring Inside Diameter | 3.0" |
| Available Spring Rates | 100–500 lb/in |
| Spring Material | High-Tensile Chrome Silicon Alloy Spring Steel |
| Spring Manufacturing | Shot Peened & Pre-Set |
| Ride Height Adjustment | Threaded Spring Preload Collar |
| Crossover Adjustment | Adjustable Dual-Rate Crossover |
| Application | Front or Rear / Universal Custom Suspension |
Fitment
Best Suited For:
- Rock crawlers
- Trail buggies
- Rock bouncers
- Custom tube chassis vehicles
- Linked front or rear suspension systems
- High-articulation off-road builds
- Applications where reservoir packaging is limited
Fitment Notes:
- Universal package for custom front or rear suspension applications
- Verify 35.43" extended and 21.50" compressed mounting lengths before ordering
- 14" travel requires adequate chassis, axle, tire, link, and driveshaft clearance throughout the complete suspension cycle
- Primary and secondary spring rates should be selected based on sprung weight, suspension geometry, shock angle, and intended use
- Dual-rate spring setup requires proper preload, crossover adjustment, and spring selection
- Cycle the suspension before finalizing shock mounts and spring clearance
- Proper bump stop placement is required to prevent the coilover from becoming the suspension travel limiter
FAQ
Why choose a 14" travel emulsion coilover?
A 14" coilover provides additional suspension movement for linked rock crawlers, buggies, and custom chassis while remaining easier to package than 16" or 18" shocks. The emulsion design also eliminates the external reservoir and hose, simplifying installation in tight chassis layouts.
Why choose a 2.5" emulsion shock instead of a 2.0" shock?
The larger 2.5" body provides increased oil volume and damping capacity. This makes it better suited to heavier vehicles, larger tires, aggressive terrain, and builds that generate more suspension load while still retaining the simplicity of an emulsion shock.
How does an emulsion shock compare with a remote reservoir shock?
An emulsion shock contains its oil and nitrogen charge within the main shock body, reducing external components and simplifying packaging. A remote reservoir provides additional fluid capacity and heat management, making it better suited for sustained high-speed use and repeated high-energy impacts.
What makes this a dual-rate spring package?
Each coilover uses two springs, giving the package four springs total. The upper and lower springs work with the spring divider and crossover hardware to create a tunable dual-rate spring stack.
What is the advantage of a dual-rate spring stack?
A properly tuned dual-rate system allows the suspension to remain more compliant early in the travel while providing additional support deeper into compression. Spring rates, preload, and crossover position all work together to determine how the suspension transitions through the stroke.
How do I select the correct spring rates?
Spring rates should be selected using sprung vehicle weight, weight distribution, suspension motion ratio, shock angle, desired ride height, and intended use. Learn how to calculate coilover spring rates here.
Are the shocks rebuildable and revalvable?
Yes. The shocks are fully rebuildable and revalvable, allowing damping characteristics to be serviced or changed as the vehicle setup evolves.
