Simple, Smart Suspension Support

SumoSprings® Solo delivers airless, progressive support in a one-piece spring that installs where your bump stops used to be.

Why SumoSprings Solo Outperforms Traditional Load Support

Smarter than steel helpers. Simpler than air systems. A better ride without the complexity — all from your bump stop location.

Direct-Fit Simplicity

Mounts in your factory bump stop location with no extra hardware or fabrication.

No Air, No Hassle

No airlines. No compressors. Just closed-cell foam that never leaks and never needs adjustment.

Smooth, Confident Ride

Reduces sway, softens harsh bumps, and improves overall control for trucks, vans, and SUVs.

Durable & All-Weather Ready

Microcellular polyurethane resists UV, corrosion, and extreme temps — backed for life.

SumoSprings Solo replaces bump stops with airless, load-adaptive support — without affecting ride comfort or suspension travel.

Designed to Support. Engineered to Disappear.

Each Solo is made from our proprietary microcellular polyurethane — infused with millions of microscopic air pockets that compress and rebound with the load. That means they adapt on the fly, reducing sag and sway without needing air pressure or manual adjustment.

Because it’s a one-piece design with no moving parts, installation is quick and maintenance is nonexistent. You simply bolt it into the factory bump stop location — and let it go to work.

Solo springs are built tough from the inside out — no maintenance, no metal fatigue, no compromise.

Made in the USA. Built for the Long Haul.

Built to Withstand the Toughest Environments

SumoSprings Solo is crafted from the same closed-cell polyurethane used across the entire SumoSprings lineup — a material engineered for long-term durability in the harshest conditions. Each spring contains millions of micro air pockets that compress under load and rebound without cracking, sagging, or absorbing water. This closed-cell design means it won’t soak up moisture or allow grime to break it down over time.

The result is a suspension solution that’s naturally resistant to road salt, corrosion, UV exposure, and extreme hot or cold temperatures. Whether you're driving through winter slush, desert heat, or coastal humidity, Solo holds strong mile after mile.

Solo delivers real support — without the compromises of traditional suspension add-ons.

Smarter Than Airbags or Metal Helpers

Airbags require compressors, pressure checks, and ongoing maintenance. Steel helper springs often stiffen your ride and wear out over time. Both options add complexity — and potential failure points — to your suspension.

SumoSprings Solo does the job of both, with none of the hassle. Its progressive foam construction absorbs load and impact naturally, adapting to changing weight while preserving ride quality. There’s no air to leak, no parts to rust, and no adjustments to make. Just plug-and-play support that works automatically — and lasts for the long haul.

Why the Industry Trusts SumoSprings

Trusted by Drivers, Mechanics, and Fleet Operators

Confidence you can count on — whether it’s your daily commute or your weekend tow trip

SumoSprings Solo is the go-to solution for anyone who wants better ride control without constant upkeep. It's trusted by fleet managers looking to reduce downtime, by mechanics who want reliable installs, and by everyday drivers who just want their vehicle to handle loads better.

With a lifetime warranty and years of proven road use across pickups, vans, and SUVs, Solo has earned its reputation for dependable, maintenance-free performance. Whether you're hauling tools, towing gear, or just loading up the family, you’ll feel the difference from the very first drive.

Built for Load-Carrying Vehicles and Everyday Driving

Solo brings control, comfort, and confidence to daily drivers and weekend haulers alike.

Use Case Highlights:
✅ Pickup trucks carrying tools, gear, or small trailers
✅ Work vans with moderate upfits or delivery payloads
✅ SUVs and crossovers loaded with passengers or luggage
✅ Towing setups needing extra support and less rear sag
✅ Drivers wanting better control without harsh ride penalties

Whether you're hitting the job site, hauling weekend toys, or just want to eliminate that rear-end sag under load, Solo is the one-piece solution that makes a real difference. It's ideal for vehicles that straddle work and personal use — adding subtle, progressive support that improves control without changing how your vehicle rides when empty.