STM Rage Primary Clutch Polaris Sportsman Scrambler 850 / 1000

This is an upgraded primary clutch for Polaris Sportsman / Scrambler 850 - 1000 models, featuring steel slider plates and improved airflow for better performance and cooling.

• The new design improves airflow and reduces clutch and belt temperatures by an average of 20-30 degrees during track racing tests.
• The clutch offers smoother low engagement and improved torque.
• The main shaft bearing has a smaller outside diameter, allowing for tighter belt deflection and smoother takeoff.