No rubber. No air. No worries.

Move over airbags, there's a new player in town.
And this one isn't going to give you headaches!

No rubber was used in this creation
of a better journey.

SumoSprings are not made from rubber. They are a progressive spring with a very soft initial engagement. That means that as more weight added, the harder they get and more they push back, providing support and control when you need it without affecting the factory ride when unloaded.