K03s reina Dura-ace-ultegra-105 pads

Shimano K03S Resin disc brake pads are the successor to the popular Shimano K02S disc brake pads and have been specially developed for road cycling. These K03S pads are 40% more durable than their predecessors, without compromising stopping power, grip and noise. Organic compound explained Organic brake pads are made from soft materials.