The Slash 4X4’s fully adjustable suspension gives it an edge in any race, and with Traxxas’ new progressive-rate tuning springs, you can hone your truck’s handling to an ever greater degree of precision. Custom-wound specifically or Slash 4X4, the new tuning springs are available in four rates to suit any setup. The progressive-rate design allows small-bump compliance without compromising big-hit capability, and the white powdercoated finish uarantees lasting good looks. The springs are color-coded to indicate rate, and are sold in pairs in front and rear lengths.
Progressive Spring Features;