SuperSprings – Advanced Load Support Suspension Systems
SuperSprings International manufacture premium suspension enhancement systems designed to improve towing stability, reduce rear-end sag, minimise sway and maintain ride height under load. Engineered for pickups, vans, motorhomes, towing and commercial vehicles, SuperSprings products provide maintenance-free load support without compromising everyday usability.
Unlike traditional airbag systems, SuperSprings and SumoSprings are fully mechanical, self-adjusting solutions that require no airlines, compressors or ongoing maintenance. They automatically react to changing loads and road conditions, helping improve control, comfort and driver confidence both on and off-road.
Reduced Rear-End Sag
Designed to support vehicles carrying constant weight or towing heavy loads, SuperSprings systems help restore ride height and improve overall suspension stability.
Improved Stability & Control
Reduce body roll, sway and suspension bounce when towing caravans, trailers, overland builds or commercial loads, helping maintain better handling and control.
Maintenance-Free Operation
No compressors, no airlines and no pressure adjustments required. SuperSprings systems are designed as simple bolt-on upgrades with long-term reliability in mind.
SuperSprings vs SumoSprings
SuperSprings International offer multiple suspension enhancement systems designed for
different vehicle setups and load requirements. Understanding the difference helps you
choose the right solution for your build, towing setup or commercial vehicle.
SuperSprings
SuperSprings are patented steel helper springs designed primarily for vehicles carrying heavier or more constant loads. They mount above factory leaf springs and automatically engage under load.
- Ideal for constant towing and heavy-duty load support
- Helps reduce squat and body roll
- Self-adjusting suspension support
- Heavy-duty steel spring design
- Excellent for commercial and overland builds
- No maintenance or air pressure adjustments required
SumoSprings
SumoSprings use advanced micro-cellular polyurethane technology to provide progressive suspension support. They replace factory bump stops and compress progressively as load increases.
- Improves comfort, stability and ride quality
- Progressive load support under compression
- Helps absorb vibration and harsh impacts
- Excellent for towing, motorhomes and daily-driven vehicles
- No airlines, compressors or maintenance
- Ideal airbag alternative for many applications
Why Choose SuperSprings?
Self-Adjusting Support
Automatically responds to changing loads without driver adjustment or setup changes.
Airbag Alternative
Achieve improved towing stability and load control without compressors or air systems.
Improved Ride Control
Helps reduce suspension bounce, sway and instability when towing or carrying equipment.
Built for Real-World Use
Suitable for towing, trade vehicles, overland builds, camper conversions and heavy-duty use.
SuperSprings International (SSI) is a trusted American suspension solutions company with over 25 years of engineering and innovation in the automotive aftermarket.
Originally founded in 1996 in Carpinteria, California by Cathi Lamberti, the brand began with a simple mission: to help vehicles work better, drive safer, and last longer under load. From humble beginnings with just a handful of employees in a small warehouse, SSI has grown into a globally recognised name — expanding to new facilities and markets while continually refining its products and technology.
Over the years, SuperSprings has introduced numerous industry-leading suspension enhancements like airless load support systems (SumoSprings), self-adjusting helper springs, heavy-duty coil upgrades, and advanced sway control products that improve stability, ride comfort, and load-carrying performance for trucks, SUVs, vans, RVs and trailers.
Headquartered in Southern California with additional operations across the U.S. and internationally, SSI remains committed to its core values of innovation, durability, and maintenance-free performance that empower drivers wherever the journey takes them. Devon 4x4 is a distributor of SuperSprings, based in the UK, shipping worldwide.