Long-life & quieter braking performanceShimano’s J02A resin disc brake pads offer quieter performance and better modulation than their metal counterparts. Their cooling fins lower braking temperatures – reducing wear and extending the life of your brake pads.Ice technology - cooling technology for consistent performanceShimano has introduced Ice-Tech brake discs and pads to provide optimum cooling technology for consistent performance. The brake discs dissipate heat better through the 3-layer sandwich structure with an aluminium core embedded in stainless steel. This reduces the surface temperature by 100°C. In addition, the brake pads have cooling fins. Less noise, less fading and less wear on the linings are the result of lower temperatures.