SumoSprings Facts: SumoSprings are maintenance-free. SumoSprings do not require an air compressor or any other accessories. SumoSprings do not crack or leak. SumoSprings Rebel kits allow full axle articulation. SumoSprings Rebel kits do not restrict vertical wheel travel. Airbag Facts: Airbags are not maintenance-free. Airbags require an air compressor. Uncared for airbags crack and leak. Airbags prevent full axle articulation. …