SumoSprings are composed of a proprietary microcellular urethane that offers a progressive spring rate, so the vehicle’s suspension receives extra support only when needed. Each SumoSpring can be ...
CARPINTERIA, Calif., Aug. 5, 2025 /PRNewswire/ -- SuperSprings International is proud to announce TÜV Rheinland certification for its SumoSprings suspension products, marking a major step forward in ...
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