The Fox Dual Rate Rear Spring Kit for Cognito Long Travel includes spring rates that have been preconfigured specifically for the Cognito Long Travel Kit. Fox's Dual Rate Spring Kit includes everything needed to upgrade your UTV to a true dual rate setup, complete with crossover adjustment. This kit is designed to be used on vehicles with Cognito Long Travel and includes parts for two shocks. Note:Shock re-valving is required. Each Dual Rate Spring Kit Features: (2) 250lbs Tender Springs (2) 300lbs Main Springs (2) Crossover Rings (2) Spring Sliders/Dividers (2) Spring Cup Adaptors (2) Rock Guard Mounts Made in the USA