Plus 6 friction disks offers up to 50% stronger clutch engagement with no increase in lever effort, Smoother shifting, Improved lever feel, Engineered to eliminate slip and tunable to handle high horsepower engines, Steel core friction disks for improved heat dissipation and longer clutch life, Rekluse sleeves eliminate basket wear and notching, Rekluse clutches are designed for use with OEM or Rekluse outer baskets. We cannot guarantee compatibility with aftermarket baskets.