Description
SumoSprings® are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort. They are maintenance free, do not leak air, and do not require airlines or compressors. SumoSprings® are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications. They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate with superior damping properties. Every SumoSpring is handmade with care, making each one unique with its own natural characteristics, such as slight color variations and surface bubbles—proof of the craftsmanship that goes into every piece.


Chris Rounding –
SumoSprings have made our van handle much better – flatter through corners and less swaying over low speed bumps.
Vincent Saunders –
Total 2-3 hours to install. The Rv rides great and takes corners so much better!
Vincent Saunders –
Total 2-3 hours to install. The Rv rides great and takes corners so much better!
Tracy Honea –
Order, shipping, communication was outstanding. Installation was much easier than expected. Replaced all bump stops in less than 45 minutes!
Juilo Gallud –
Beast upgrade to reduce sway and Improve handling
Sam White –
Super Springs was really helpful and shipped it out quick. The ride improvement was great, feels solid and the swaying in and out of driveways has improved immensely. Just a much more solid ride.
Bob Lewis –
Great product
Eric Engmyr –
Springs Make a huge difference thank you
James Bradbury –
Easy order and install
David Mackenzie –
Huge difference in driving quality between the stock bump stop and sumo springs. We went from bumpy ride and feeling every pot hole to better ride quality. Before the sumo springs every high wind areas we passed I have to slow down and manage the steering wheel continuously, After the install, it’s much stable and resists cross winds immediately and consistently adjusting the vehicle position in space. Probably the best investment I put on our 2020 Airstream Interstate 19.
Miguel Gonzalez –
The teams help to get the product before my trip was awesome. Installation was super easy. The ride difference is amazing. Did a 1,600 mile trip right after install with 11 passengers, hauling a small trailer and loaded to the ceiling. Handling and ride was awesome!
Bruce Gustafson –
Got great tech support prior to the sale. Love the performance on my 2019 2 wheel drive 2500 MB Sprinter
Leonardo Vendola –
The ride is much more comfortable. Especially on the highway. When hitting pot holes at high speed the rear of the vehicle does not bounce. I also noticed that it has improved stability on winding highway.
Michael Cogswell –
The combination of Sumo and SuperSpring have made a great difference in the ride quality. They have basically eliminated body roll and soaks up potholes and large road depressions like they weren’t even there. The van rides like floating clouds
Scott Allen –
Wow! What a difference in roll, more stable in the wind
James Davis –
Fast service. Received Sumo Springs a week earlier than I expected. Product was exactly as described. Installation was straightforward and relatively simple. The springs make a noticeable improvement in handling and stability of our van.
Elaine Guarino –
Fabulous products and staff.
Robert Goodsell –
After using Timbrens for 2 years what a difference! We had the Timbrens for a couple of years and the original set was way to hard of a ride. The Microwave almost fell out of the cabinet. They sent a second set of lighter springs. Still to rough of a ride. After removing these, we went a year without any helpers.
This year I decided to try the Sumo Springs. What a difference in the ride and handling. I would recommend Sumo Springs to any motorhome owner. The ride is firm but not harsh. I wish we would have installed Sumo’s in the first place.
Jeffrey R. Gullo –
When my wife and I head out in our 2023 Winnebago View we are looking for the best ride we can get. I don’t like swaying back and forth in crosswinds or leaning in turns. And we try to miss every big bump in the road but that is not always possible. After 18 years and 2 Sprinter Class C motorhomes without doing any suspension upgrades, we decided to try front and back SumoSprings. I chose the blue front and black rear SumoSprings and Wow! they give the RV a more “planted” feel and a better ride without increased road noise or stiffness.
I would absolutely buy them again. They have increase our confidence alot. My goal is to have a motorhome that drives more like an SUV. The SumoSprings along with new rear Fox shocks have given us a much improved ride. We now feel more relaxed when driving in cross winds and I can’t describe how much better it feels to turn without leaning. Happy driving, hope you enjoy the road as much as we do.
Michael Laderoute –
Great products and good support. Thank you.
James Marshall –
Replaced front Struts and rear shocks. Ride much firmer.
Randy B. Loudon –
Worked great. Took the sway and rock out of it. Very pleased.
Bruce Gustafson –
Excellent upgrade with outstanding results/performance
David Braddy –
Seems to be a great product, extremely quick delivery, super easy to install, what else can you ask for