2.0 Emulsion Coilover (x2) & Dual Rate Spring (x4) Package – 16" Travel
The 2.0 Emulsion Coilover & Dual-Rate Spring Package – 16" Travel combines two Radflo 2.0 emulsion coilovers with four Eibach 2.5" ID coilover springs for long-travel rock crawlers, lightweight trail buggies, and custom tube chassis vehicles. The compact 2.0" shock body keeps weight and packaging manageable, while 16" of travel gives properly designed linked suspension systems substantial 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 increased support deeper into compression. The emulsion design keeps the oil and nitrogen charge inside the shock body, eliminating remote reservoirs and hoses while retaining rebuildable and revalvable damping performance for long-travel crawlers and trail builds where simplicity and articulation are priorities.
Includes:
- (2) Radflo 2.0 Emulsion Coilover Shocks – 16" Travel
- (4) Eibach 2.5" 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 | 5CE-009-00 |
| Shock Quantity | (2) |
| Shock Type | Emulsion Coilover |
| Shock Body Diameter | 2.0" |
| Shock Travel | 16" |
| Extended Length | 39.76" |
| Compressed Length | 23.78" |
| 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 Quantity | (4) – Two Springs Per Coilover |
| Spring Configuration | Dual Rate |
| Spring Inside Diameter | 2.5" |
| Spring Rates | Selectable Based on Vehicle & Suspension Setup |
| 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:
- Long-travel rock crawlers
- Lightweight trail buggies
- Custom tube chassis vehicles
- Linked front or rear suspension systems
- High-articulation suspension builds
- Technical crawling and trail use
- Applications where simple shock packaging is a priority
Fitment Notes:
- Universal package for custom front or rear suspension applications
- Verify 39.76" extended and 23.78" compressed mounting lengths before ordering
- 16" travel requires substantial chassis, tire, axle, link, and driveshaft clearance throughout the suspension cycle
- Primary and secondary spring rates should be selected based on sprung weight, suspension geometry, shock angle, ride height, and intended use
- Dual-rate spring setup requires proper preload, crossover adjustment, and spring selection
- Cycle the complete 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
What type of build is a 2.0" x 16" emulsion coilover package best suited for?
This package is best suited for lightweight rock crawlers, trail buggies, and custom tube chassis vehicles designed around substantial articulation. The 2.0" body keeps the shock relatively compact while the 16" travel provides significant suspension stroke.
Why choose 16" travel?
A 16" coilover gives a properly designed linked suspension more potential wheel movement and articulation than shorter 12" or 14" configurations. The tradeoff is additional shock tower height and greater clearance requirements throughout the suspension cycle.
What makes this a dual-rate spring package?
The package includes four springs total, with two springs used on each coilover. 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 dual-rate springs?
A dual-rate setup gives the builder greater control over suspension behavior through the travel. Proper spring selection and crossover adjustment can provide better compliance early in compression while adding support as the suspension moves deeper into the stroke.
Why choose an emulsion coilover instead of a remote reservoir shock?
An emulsion coilover contains the oil and nitrogen charge inside the shock body, eliminating the external reservoir and hose. This simplifies installation and packaging for crawling and trail-focused vehicles where sustained high-speed heat management is not the primary requirement.
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 these coilovers rebuildable and revalvable?
Yes. The shocks are fully rebuildable and can be revalved as vehicle weight, suspension geometry, or intended use changes.
