Radflo Shocks: 500R, 2.5 Reservoir, and ROAM Series Explained

If you're shopping for high-performance shocks for your truck or SUV, Radflo belongs at the top of your list. At SWAT Customs in Fremont, CA, Radflo is one of our most-recommended shock brands when customers want serious performance, real tunability, and a 1-of-1 look — without paying race-team prices.

Every Radflo shock is built to order, custom-valved, and made in the USA. That alone sets them apart from most of the shelf-stocked competition. But the real magic is how Radflo's lineup scales — from a daily-driven entry point to overland-ready heavy-load setups to fully adjustable performance coilovers.

Here's how to think about the three product tiers and figure out which Radflo setup is right for your build.

Why Radflo?

✅ Built-to-order in the USA – Every shock is custom-valved to your specific vehicle, weight, and intended use

✅ Fully rebuildable – Long-term serviceability, not a throwaway shock

✅ Wide platform support – Tacoma, 4Runner, Tundra, Land Cruiser/GX, FJ Cruiser, Frontier, F-150, Ram, Silverado, and more

✅ True performance options – From bolt-on coilovers to Hi/Lo adjustable reservoir setups

✅ Custom anodizing and Cerakote – Match your rig, stand out in any lineup

This is performance suspension with personality.

Radflo 500R Sport (2.0 IFP)

The 500R is Radflo's entry into the performance shock world — and it punches dramatically above its price point.

✅ 2.0" monotube body with Internal Floating Piston (IFP) design for precise damping

✅ Hydraulic Droop Stop (HDS) – protects the shock at full extension and eliminates harsh top-out noise (normally only seen in shocks double or triple the price)

✅ Massive ride-quality and handling improvement over factory

✅ Ideal for daily driving and light-to-moderate off-road use

✅ Mid-tier price, top-tier feel

The 500R is our go-to recommendation when a customer wants real performance suspension without going to a 2.5" body. It's the perfect "step up" from a Bilstein or Dobinsons setup when you want a noticeably more dialed ride.

Radflo 2.5 Reservoir Series

This is where Radflo opens the door to true high-performance damping — and where adjustability becomes part of the conversation.

The 2.5 Reservoir family comes in several configurations, and each adds a layer of capability:

2.5 IFP (No Reservoir)

✅ Larger 2.5" body for more oil volume and heat dissipation

✅ Straightforward upgrade for off-road performance without external reservoir complexity

2.5 with Reservoir

✅ External reservoir massively increases oil capacity and cooling

✅ Prevents cavitation and shock fade on sustained or aggressive off-road use

✅ The sweet spot for serious trail and overland use

2.5 with Reservoir + Compression Adjuster

✅ Single-knob compression adjuster for on-the-fly tuning

✅ Dial in firmer for highway hauling, softer for trail comfort — by hand, no tools

2.5 with Reservoir + Hi/Lo Speed Adjusters

✅ Independent high-speed and low-speed compression adjusters

✅ Maximum tunability — from slow-speed rock crawling to high-speed desert running

✅ The choice for enthusiasts who want to fine-tune every aspect of damping response

For most customers running added weight (bumpers, sliders, drawers, RTTs), the 2.5 Reservoir — with or without adjusters — is the answer.

Radflo ROAM Series – Built for Overland and Heavy Builds

The ROAM Series (Radflo Offroad Adventure Made) is Radflo's newest and most specialized lineup. It's purpose-built for vehicles carrying serious added weight — campers, toppers, roof-top tents, full rack systems, and overland gear.

✅ Designed for dynamic shifting loads — front-to-back and side-to-side

✅ Freeflo Piston engineered specifically for heavy loads

✅ Standard adjusters on every ROAM shock, with optional Hi/Lo adjusters for max control

✅ Available in ROAM 2.5 for mid-size platforms (Tacoma, 4Runner, Land Cruiser, GX)

✅ Available in ROAM 3.0 for full-size and 15,000+ lb chassis (F-250/F-350, Ram HD, Silverado HD with camper conversions)

If your build is more "expedition rig" than "weekend trail truck," the ROAM Series is engineered for exactly that mission. We've seen them transform how heavily loaded overland builds ride and handle — both on the highway and in the dirt.

Custom Applications & Aesthetics

One of Radflo's best-kept secrets is that every shock is essentially a custom build. That means we can spec your shocks for:

✅ Your exact vehicle and weight – custom valving on every order

✅ Your lift height – stock height and up, and up... and up

✅ Your aesthetic – custom anodizing colors and Cerakote finishes

✅ Your use case – overland, daily driver, weekend trail, desert, towing

If you've ever wanted shocks that match your rig's color scheme — or simply want a setup nobody else has — Radflo is one of the only brands that offers this kind of customization across their entire product line.

Platform Support

Radflo covers virtually every popular off-road and overland platform we work on at SWAT Customs:

Toyota Tacoma (all gens, including 2024+)
Toyota 4Runner (3rd, 4th, 5th gen)
Toyota Tundra
Toyota Land Cruiser LC250 / Lexus GX470 / GX550
Toyota FJ Cruiser
Nissan Frontier
Ford F-150, F-250, F-350
Chevy Silverado / GMC Sierra (1500 and HD)
Ram 1500

If you don't see your platform, ask — Radflo's universal-length and OE-replacement catalog is enormous. They can also help customer R&D shocks for uncommon applications and we have experience with this process.

SWAT Customs – Your Radflo Install Experts

At SWAT Customs, we don't just sell Radflo shocks — we spec them, install them, and tune them for your specific build. Because every Radflo order is built to order, getting the valving and configuration right before it ships matters. That's where we come in.

Our team will walk you through:

✅ The right tier for your goals (500R, 2.5 Reservoir, or ROAM) so you don't over-spend or under-spec

✅ Whether you need adjusters — and which type

✅ The correct UCA pairing for your lift height

✅ Custom color and finish options

✅ Realistic lead times so you can plan your build

Ready to Upgrade to Radflo?

Stop by, call, or message us — we'll show you live builds running Radflo shocks and help you spec the exact setup that fits how you actually use your truck.

SWAT Customs — Fremont, CA
2030 Warm Springs Ct. #1, Fremont, CA 94539
(510) 651-7928
Contact us online or DM us on Instagram @swat_customs