Performance (*.P): excellent performance in all conditions, a great balance of power and pad life Comfort (*.C): longer lasting pad life with excellent modulation Race (*.R): strongest braking power for riders that push limits in cross country and Downhill events Sport (*.S): EBike optimized, performance is between Comfort and Performance pads Prior models, Marta, Marta SL, Louise, and Julie, choose between Performance (*.1 series): stronger grip or Endurance (*.2 series): longer pad life pads Iincludes left and right pads with retraction springs and/or retention pins 9.P, 9.C, and 9.S fitment MT Next 7/5 4piston with 2 single pads, 1 pair is 2 pieces 8.R, 8.P, and 8.S fitment MT Next 7/5 4piston with 4 single pads, 1 pair is 4 pieces