Radflo 2.5 Remote Reservoir Coilover Shock | Off-Road Suspension
6CR-001-00
The Radflo 2.5 Remote Reservoir Coilover Shock is built for drivers who demand more suspension control, greater damping capacity, and improved performance in demanding off-road environments. Designed around a large 2.5" shock body and heavy-duty 7/8" shaft, this coilover provides the increased oil volume and damping authority needed for heavier vehicles, larger tires, and aggressive terrain.
For serious rock crawlers, rock bouncers, Ultra4 cars, prerunners, and high-performance trail rigs, the Radflo 2.5 Coilover represents one of the most popular upgrades in off-road suspension systems. The larger shock body delivers significantly greater fluid capacity than a 2.0 coilover, while the remote reservoir further increases oil volume and cooling capacity to help maintain consistent shock performance during long trail rides, competition events, and repeated hard impacts.
Includes:
- (1) Radflo 2.5 coilover shock with remote reservoir
- Dual-rate spring hardware
- Universal spherical bearings
- Mounting hardware
- Eibach Coilover Springs Sold Separately
Why Upgrade to a 2.5 Remote Reservoir Coilover?
As vehicle weight, horsepower, tire size, and suspension travel increase, so do the demands placed on your shocks. The larger 2.5" shock body provides more damping control while the remote reservoir helps reduce heat buildup that can cause shock fade during extended use.
Availability Note: As the #1 Stocking Warehouse for Radflo Performance Shocks, we maintain the largest on-shelf inventory of off-road coilover shocks and springs in the industry. While we keep the most popular travel lengths ready for immediate shipment, certain Radflo coilovers, custom valving packages, or special-order suspension components may require additional production time. Please allow approximately 4–6 weeks for manufacturing and shipment of these products.
We are committed to getting your rig on the trail as fast as possible. If your build schedule is critical, please call us to confirm real-time inventory before placing your order. If you need help selecting the correct coilover shocks, coilover springs, or complete off-road suspension system for your build, our team is happy to help.
Specifications
- Brand: Radflo
- Shock Type: Coilover with Remote Reservoir
- Body Diameter: 2.5″ shock body
- Travel: 8″, 10", 12", 14", 16" or 18"
- Shaft Diameter: 0.875″ (7/8″) shaft for increased strength and durability
- Application: Front or Rear Shock Applications
- Body Material: SSID Alloy Steel Tube
- Body Finish: Clear Cadmium Plating
- Body Caps/Eyelets: CNC Machined 6061 Aluminum
- Caps Finish: Black Anodized
- Rod Material: Nitro Steel
- Rod Finish: Mirror Polished
- Rod Guide: CNC Machined Bronze with PTFE Coating
- Piston: Radflo Aluminum Freeflo Racing Piston
- Seal System: Quad-Ring & Lip Seal (Rebuildable)
- Valving Type: Velocity-Sensitive Deflective Disc
- Valving: Consumer or Factory Tunable
- Oil Type: Radflo High-Temp Foam Resistant Suspension Fluid
- Pressurization: Nitrogen Gas
- Charge Pressure: 200 PSI
- Serviceability: Fully rebuildable and revalvable design
- Dual Rate Spring Hardware: Included
- Springs: Springs Not Included. Compatible with a wide range of coilover springs.
- Sold: Individually
Fitment
Universal fitment for off-road suspension systems including:
- Rock Bouncers
- Ultra4 Race Cars
- Rock Crawlers
- Prerunners
- Off-Road Race Trucks
- Jeep Suspension Builds
- Heavy Trail Rigs
- Custom Tube Chassis Vehicles
- High Horsepower Off-Road Builds
For many builders, the Radflo 2.5 Remote Reservoir Coilover is the ideal balance between everyday trail performance and race-level suspension capability.
Note: Proper spring rate selection, mounting dimensions, and reservoir routing must be verified for your specific vehicle.
Tech Insight
1. What is the advantage of a Radflo 2.5 Remote Reservoir Coilover compared to a 2.0?
The larger 2.5" shock body holds more oil, providing greater damping control and improved performance for heavier vehicles, larger tires, and aggressive off-road use. The remote reservoir further increases cooling capacity and fade resistance.
2. Why choose a remote reservoir shock?
Remote reservoirs increase oil volume, improve heat dissipation, and help maintain consistent shock performance during long trail rides, racing, and repeated suspension cycling.
3. What vehicles are best suited for a Radflo 2.5 Remote Reservoir Coilover?
These shocks are commonly used on rock bouncers, Ultra4 cars, prerunners, Jeeps, off-road race trucks, and heavy-duty trail rigs where suspension demands exceed what smaller shocks are designed to handle.
4. Do these coilovers include springs?
No. Springs are sold separately so builders can choose the proper Eibach coilover springs and spring rates for their vehicle weight and suspension setup. (Learn How to Calculate Spring Rates)
5. Are Radflo 2.5 Remote Reservoir Coilovers rebuildable?
Yes. Radflo shocks are fully rebuildable and serviceable, allowing owners to maintain peak suspension performance and extend shock life through regular maintenance.
