SwissStop Exotherm2 34 Disc Brake Pads, Shape: Shimano K-Type/L-Type, Dura Ace M9270, Ultegra 8170, Tiagra 4770,

Maximum pad life with minimum brake fade Extremely durable, smooth modulating pad compound Cooling fin equipped back plate provides consistent, powerful braking in all conditions Pad wear rate is much lower than competitors Smooth, consistent brake performance