OEM packaging Shimano disc brake pads with cooling ribs for mountain bikes or racing bikes in pack of 25. Discoloration of brakes after prolonged and uninterrupted use, for example downhill, impairs braking performance. Shimano has introduced brake discs and pads with Ice Technologies to create cooling technology for consistently high braking performance. The brake disc has a three-layer sandwich structure of stainless steel on the outside around an aluminum core. It diffuses heat better and, for example, reduces a surface temperature from 400˚C to 300˚C. There's also a cooling fin on the brake pad. Disc construction in conjunction with cooling fins results in longer pad life, less brake noise, less discoloration and lower weight. Type: disc brake pads. Brake pad material: Resin (organic). Material information: backing plate: plastic. Compatibility : XTR, Deore XT, SLX, Alfine.