Radflo 2.5 Bypass Shock w/ Piggyback Reservoir – 7/8” Shaft - 2 Tube
SKU: 6BP-201-00
The Radflo Off-Road 2.5 Bypass Shock with Piggyback Reservoir combines position-sensitive external bypass tuning with velocity-sensitive internal valving, delivering true dual-stage performance in a single shock package.
Softer damping during initial travel maintains comfort and traction, while firmer damping near the end of stroke resists harsh bottom-outs at speed. The 2-tube external bypass system allows precise adjustment of compression, rebound, and bleed characteristics at specific points in the travel—giving you race-level control over how the suspension reacts in real terrain.
At the core is Radflo’s exclusive Freeflo® Racing Piston, which uses adaptive damping technology to automatically match shock performance to surface conditions. Combined with a 7/8 Nitro Steel® shaft, CNC-machined bronze rod guide, and a multi-direction sealing system, this shock is engineered to survive extreme abuse while remaining fully serviceable and tunable.
Includes:
- Radflo 2.5 Bypass Shock with Piggyback Reservoir
- 2 External Bypass Tubes
- Universal spherical bearings and mounting hardware
Sold individually
Availability Note: As the #1 Stocking Warehouse for Radflo, we maintain the largest on-shelf inventory of shocks 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.
Specifications
- Product Type: Off-Road Bypass Shock with Piggyback Reservoir
- Shock Diameter: 2.5"
- Travel Length: 8",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: 2
- 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: Consumer or Factory Serviceable
Fitment
- Universal Fitment
- Front or rear suspension applications
- Intended for custom off-road suspension systems
- Ideal for rock crawlers, desert trucks, Ultra4, buggies, prerunners, and aggressive trail rigs
- Final tuning and bypass placement should be matched to vehicle weight, suspension geometry, and driving style
Tech Insight
Bypass shocks are the pinnacle of off-road damping technology, blending position-sensitive control with velocity-sensitive response. External bypass tubes regulate oil flow at specific points in the stroke, while internal valving reacts instantly to impact speed—providing superior control across crawling, high-speed desert runs, and hard landings.
The 2.5" body offers increased oil volume and thermal capacity, while the piggyback reservoir improves cooling and consistency during sustained abuse. Custom valving ensures the shock is tuned specifically for your vehicle rather than a one-size-fits-all setup.