Clutch & Basket Apex - Hd Twincam 07-10 Rms-6915101APEX Clutch & BasketTunable to power needs and rider preference with interchangeable spring combinations to match engine build while minimizing lever force Reduces clutch operating temperatures with improved oil for longevity and consistent performance Designed for usable power delivery with a wide range of horsepower levels, no need for overly aggressive alternatives like lock up systems Designed to reduce lever pull effort while increasing lever