The EVP Shift-Tek High Engagement Ultimate Clutch Kit for Polaris RZR Turbo R, PRO XP and XP Turbo S is built for riders who want explosive acceleration, maximum belt grip and unmatched durability. With precision-engineered clutch arms, high-performance springs and progressive helix design, this kit delivers harder launches, faster backshifts and reduced belt slip so you can put every ounce of power to the ground. Whether you’re tearing through dunes, dominating the track or hammering rocky trails, it’s the upgrade that transforms your RZR’s responsiveness and keeps you ahead of the pack.
Features:
- High Engagement Ultimate Clutch Kit includes notched Clutch Arms (High Engagement) and weight kit, Silver Primary Spring and Turquoise Secondary Spring
- Springs are made from chrome silicon steel alloy, which is stronger than most alloys
- Stiffer primary spring compared to OEM, allowing more belt squeeze to eliminate slippage
- Replacement secondary spring increases back shift speed
- 38-48 Progressive Helix will help eliminate belt slip while adding better grip for smoother back shifts
- Shift-Tek weights feature specific geometry catering to the Polaris OEM clutches
- All EVP clutch kits are designed to work with both the OEM and EVP BAD ASS Belts
- Designed, tested, and manufactured in the U.S.A.
Kit Includes:
- EVP Adjustable Weight SET (Choose High or Low)
- 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
