Radflo 2.5 Bypass Shock w/ Piggyback Reservoir – 3-Tube, 7/8” Shaft
6BP-302-00
The Radflo 2.5 3-Tube Bypass Shock with Piggyback Reservoir delivers race-proven suspension control in a compact, self-contained package. Designed for rock crawlers, rock bouncers, trail rigs, Ultra4 cars, and custom off-road vehicles, this shock combines the tunability of a bypass shock with the simplicity of an integrated piggyback reservoir.
Unlike standard coilover shocks, bypass shocks allow suspension damping to change throughout the shock stroke. This gives builders the ability to create a smoother ride over rough terrain while increasing control near full compression and extension. The result is improved traction, greater stability, and better overall suspension performance.
The piggyback reservoir eliminates the need for external reservoir hoses while still increasing oil capacity and cooling performance. This creates a cleaner installation and simplifies packaging in vehicles where space is limited. For builders looking to improve suspension performance without adding additional hose routing and mounting brackets, the Radflo 2.5 Piggyback Bypass Shock offers an excellent balance of performance, simplicity, and durability.
Includes:
- (1) Radflo 2.5 3-Tube Bypass Shock
- Piggyback Reservoir
- Universal spherical bearings and mounting hardware
Availability Note: As the #1 stocking warehouse for Radflo Performance Shocks, we maintain one of the largest inventories of Radflo coilovers and springs in the industry. While many popular shock configurations are available for immediate shipment, certain coilovers, custom valving packages, and special-order suspension components may require 4–6 weeks for production and delivery.
Need parts quickly? Call us for current inventory availability and expert help selecting the right coilover shocks, springs, or suspension package for your build.
Specifications
- Brand: Radflo
-
Product Type: 3 Tube Bypass Shock with Piggyback Reservoir
- Shock Diameter: 2.5
- Travel Options: 10", 12", 14", or 16"
- Shaft Diameter: 7/8" (0.875")
- Rod Material: Nitro Steel
- Rod Finish: Mirror Polished
- Body Material: SSID Alloy Steel Tube
- Body Finish: Clear Cadmium Plating
- Body Caps / Eyelets: CNC-Machined 6061 Aluminum
- Body Caps Finish: Black Anodized
- Bypass Tubes: 3
- Bearing Size: 5/8" (0.625")
- Mounting: Universal Spherical Bearing and Hardware
- Rod Guide: CNC-Machined Bronze with PTFE Coating
- Piston: Radflo Aluminum Freeflo® Racing Piston
- Seals: Quad-Ring and Lip Seal Combination (Rebuildable)
- Valving Type: Velocity Sensitive Deflective Disc
- Valving Adjustment: Self-Adjusting
- Valving Tuning: Consumer or Factory Tunable
- Oil: Radflo High-Temp Foam Resistant Suspension Fluid
- Pressurization: Nitrogen Gas
- Nitrogen Pressure: Starting at 200 PSI (application dependent)
- Serviceability: Rebuildable and serviceable
Fitment
- Universal Fitment
- Front or rear suspension applications
- Designed for custom off-road suspension systems
Ideal for:
- Rock Crawlers
- Trail Rigs
- Jeep Suspension Builds
- Rock Bouncers
- Ultra4 Cars
- Custom Tube Chassis Vehicles
- Off-Road Race Vehicles
- High-Performance Off-Road Builds
Note: Final tuning should be matched to vehicle weight, suspension geometry, and intended terrain
Tech Insight
What is the difference between a piggyback reservoir and a remote reservoir?
A piggyback reservoir is mounted directly to the shock body, eliminating the need for external reservoir hoses. This simplifies installation while still providing additional oil capacity and cooling benefits.
2. What are the advantages of a 3-tube bypass shock?
The three externally adjustable bypass tubes create multiple damping zones throughout the shock stroke, allowing improved ride quality, traction, chassis control, and bottom-out resistance.
3. Is a piggyback shock easier to install than a remote reservoir shock?
Yes. Because the reservoir is integrated into the shock body, there are no hoses to route and no separate reservoir mounts to fabricate.
4. What vehicles work best with a Radflo 2.5 Piggyback Bypass Shock?
These shocks are commonly used on rock crawlers, Jeeps, trail rigs, rock bouncers, Ultra4 cars, and custom off-road vehicles where suspension performance and compact packaging are both important.
5. Are Radflo Piggyback Bypass Shocks rebuildable?
Yes. Like all Radflo shocks, these shocks are fully rebuildable and serviceable, allowing long-term maintenance and suspension tuning as vehicle needs evolve.