The Radflo 2.5 Coilover with Remote Reservoir and 7/8″ shaft is engineered for serious off-road performance where strength, heat management, and precise tuning are critical. Designed for advanced suspension systems, this 2.5″ diameter coil-over delivers improved oil capacity and thermal stability over smaller platforms making it ideal for aggressive trail use, rock crawling, and high speed off-road applications.
Choose the ideal spring combination (single or dual-rate), and Radflo will custom valve compression and rebound characteristics to match your vehicle weight, suspension geometry, and performance goals. Once installed, ride height, preload, and travel can be adjusted quickly and precisely without removing the shock from the vehicle.
The integrated coil-over design provides superior performance in a compact package, fitting tight mounting locations where traditional coil spring setups may not. Radflo’s exclusive Freeflo Racing Piston and velocity sensitive valving automatically adapt to terrain conditions, delivering improved control, comfort, and stability.
Includes:
- (1) Radflo 2.5 Coilover Shock
- Remote Reservoir
- Coilover Spring Hardware
- Universal Spherical Bearing & Mounting Hardware
*Sold Individually
**Springs Sold Separately.
Availability Note: As the #1 Stocking Warehouse for Radflo, we maintain the largest on-shelf inventory of shocks and spring packages in the industry. While we keep the most popular lengths ready for immediate shipment, the high demand for specialized sizes can occasionally result in a lead time on shocks that get ordered.
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.
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Shock Type: Coil-Over with Remote Reservoir
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Body Diameter: 2.5″
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Travel: 8″, 10", 12", 14", 16" or 18"
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Shaft Diameter: 0.875″ (7/8″)
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Application: Front or Rear
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Body Material: SSID Alloy Steel Tube
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Body Finish: Clear Cadmium Plating
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Body Caps/Eyelets: CNC Machined 6061 Aluminum
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Caps Finish: Black Anodized
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Rod Material: Nitro Steel
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Rod Finish: Mirror Polished
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Rod Guide: CNC Machined Bronze with PTFE Coating
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Piston: Radflo Aluminum Freeflo Racing Piston
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Seal System: Quad-Ring & Lip Seal (Rebuildable)
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Valving Type: Velocity-Sensitive Deflective Disc
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Valving: Consumer or Factory Tunable
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Oil Type: Radflo High-Temp Foam Resistant Suspension Fluid
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Pressurization: Nitrogen Gas
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Charge Pressure: 200 PSI
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Serviceability: Consumer or Factory Serviceable
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Sold: Individually
Universal fitment for custom off-road suspension systems including:
- Rock crawlers
- Trail rigs
- Desert race vehicles
- Long-travel builds
- Custom tube chassis applications
Proper spring rate selection, mounting dimensions, and reservoir routing must be verified for your specific vehicle.
The 2.5″ coilover platform offers increased oil capacity compared to a 2.0 shock, improving heat dissipation and maintaining consistent damping during aggressive use. The remote reservoir further enhances performance by stabilizing internal pressure and reducing cavitation.
The 7/8″ Nitro Steel shaft provides excellent strength-to-weight balance, while the PTFE-coated bronze rod guide ensures smooth operation under heavy side loads. Radflo’s multi-stage valving and Freeflo Racing Piston allow precise tuning of compression and rebound characteristics, giving builders and racers complete control over suspension behavior.
Fully rebuildable and built-to-order, this coilover is designed to deliver dependable, race-ready performance for years of hard off-road use.
