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Your cart is empty.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.
lolly
Reviewed in the United States on February 6, 2025
Wanted to love these, they were pretty easy to put on and I felt like they did pretty good for a month or so and then I guess they got broken in and now really wish I had just put airbags on here so these will be coming out And getting replaced, waste of money
Jeff C
Reviewed in the United States on May 23, 2021
There are a lot of opinions out there regarding these helper springs, so I'll add my two cents. I added these and the matching front bump stops to my 2018 Coachmen 27QB with the Chevy 4500 chassis and they made a big difference. They do not smooth the ride a but they greatly reduce the side to side sway as you go down the road. I also added a SafeTStop steering stabilizer at the same time and the overall result is a much more relaxing drive. There is no longer a need to constantly make steering corrections, so driving is much less of a workout. Not making any long drives until the fall so I can't comment on how it will help when being passed by semis, but I fully expect it to be much better than stock based on other reviews.
tonystbird
Reviewed in the United States on May 2, 2021
Transformed the ride of my 2002 Roadtrek 200. It is on a Chevy Express cutaway chasis. Because of the configuration under the vehicle (i.e. tanks, generator, etc) there is no rear sway bar. The result is….sway! The SumoSprings have removed a great deal of the sway and have made the van much easier to drive. I highly recommend!!
Buckeye Guy
Reviewed in the United States on January 10, 2021
Easy easy easy to install. Use them on Coachmen Freelander 24 ft class c. Resolved and back end suspension bottoming out. Big fan. Worth the money.
Mark
Reviewed in the United States on July 13, 2018
Easy install on our 2016 Coachmen 27QBC Class C RV with Chevy 4500 Cut-A-Way cab. Took about 30 minutes to remove the old bump stops, jack up the RV by the frame with a bottle jack and slide the SumoSprings in. Living in Alaska the roads are challenge at times, lots of frost heaves, gravel roads and poorly maintained roadways. Hoping these will help tame the ride. Going on a trip this weekend to try them out. One note, the matching front SumoSprings Solo Custom Helper Springs - Front Axle Item # SSF-204-54. that are carried on Amazon will not ship to Alaska. Had to order them from etrailer dot com. Have not received the front springs yet, no idea why Amazon will not ship them to Alaska, they are no different then the rear springs.
Geoff
Reviewed in the United States on February 8, 2018
Super easy install, time will tell, next trip in 2 weeks.OK, made a 400 mile trip, all I can say is "WOW" RV is actually a joy to drive (also upgraded shocks to Bielstines)
c-dub
Reviewed in the United States on September 3, 2017
I added the front and rear sumosprings to my 14k lb chassis chevy 4500 motorhome. Collectively they have taken the ride from rough, painful and downright terrible to outstanding. The harsh bumps that existed from concrete freeways with large expansion joints is a thing of the past. I used to hit bridge transitions and the whole motorhome would slam, rattling the cabinets and dishes. The back passengers complained at the quality of the ride to the point they were car sick. The best benefit is the side to side sway is nearly gone. It's extremely improved. Large trucks used to suck me into their lane as they start to pass and then push me away as they would take the lead. Wyoming winds would make the drive tiring. These little guys have all but eliminated the sway. The motorhome isn't a sports car but it's tight while cornering and feels more like a car than a motorhome. Windy mountain roads are now a one-handed operation. I can't say enough how these improved the ride! They installed in minutes (once i figured it out). Make sure you jack up the frame far enough to create the gap between the chassis and the axle. You can then slide them into place easily. If there is one thing you should do for a van/truck based chassis motorhome it's this.
wayne_tw
Reviewed in the United States on September 19, 2017
WOW! What a difference they made. Should be standard equipment form the factory. Super easy installation took less than an hour!
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