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.


Edward Forster –
Fairly easy to install on the driver’s side, but the passenger side was a little more involved due to having to move the positive jump cable attach point and two airlines from the air drier.
After the installation, I took the RV for a test drive. I could feel the improvement immediately when I pulled out of our driveway, no rocking like before. On our narrow county roads, the rocking was reduced, easier to maintain my position in the center of the lane. Interstate travel was so much more steady during windy conditions. All in all purchase and installation was worth the cost and installation effort. Thx Ed
Arthur Holland –
easy to install.
Charles Toplikar –
Game Changer! Greatly reduced the side-to-side sway of my Freightliner S2RV over rough roads and around turns. Also noticeably reduced the vibration and smoothed the ride.
Would be 5 star rating, but I had to modify the driver side bracket to provide clearance from the shock absorber.
Pete Peterson –
I shared my install pics with members of our Newmar Superstar owners group and several have since placed orders for their motorhomes.
Harold Yarborough –
Easy to install