EVP Shift-Tek High Engagement Ultimate Clutch Kit for Polaris RZR Turbo R & Pro XP

Pro-XP & Turbo R Ultimate Clutch Kits Include: EVP Adjustable Weight Set High Engagement: 2400 RPM engagement, notched  EVP Silver Primary Spring: When used with High Engagement (notched) weights, RPM engagement increases to 2600 RPM compared to the stock 1800 RPM engagement  Silver Spring alone with no weights = 2200 RPM engagement EVP Turquoise Secondary Spring: stiffer than stock to allow better belt squeeze, increase back shift speed and eliminate belt slip to reduce heat and eliminate potential blowouts EVP 38-48 Helix for Polaris P90X-HD Clutch or 36-42 Helix for 2020 Pro XP models    NOTE: These clutch kits are compatible with all RZR Turbo R and RZR Pro XP models, as well as 2021 XPT/S models.