Application:  Polaris RZR XP Turbo S ModelsIncrease performance with this Dual Rate Spring Kit for Polaris RZR XP Turbo S with Walker Evans Velocity Shocks. These Progressive Tender Springs, Main Springs and Crossover rings allow for much more adjustment to improve Comfort, High Speed Control, Roll Stability and Bottoming Resistance. Easy to install and very effective to improve the over all ride and performance. Tested and proven designs, premium quality high tensile silicone chrome wire insure top quality performance year after year. Kit includes:(2) Front Progressive Tender Springs(2) Front Main Springs(2) Front Crossover Rings(2) Rear Tender Springs(2) Rear Main Springs(2) Rear Crossover Rings