Brake disc. Material: stainless steel. Brake mount: Center Lock. Diameter: 180 mm. Compatible pads: metal, plastic. Performance indicator: Select (level 1 of 3). The two-piece Shimano brake discs with aluminum carrier star not only look robust but also offer clear technical advantages over one-piece discs. They dissipate heat better, suppress vibrations, and are more resistant to deformation. Shimano. The Shimano brand focuses on outdoor activities such as cycling and fishing. Believing that everyone occasionally feels the need to connect with nature, the Japanese manufacturer develops products that enhance this experience. The company aims to introduce a new lifestyle into people's lives and foster a connection with nature. Its goal is to provide high-quality, reliable, and enjoyable products and services. The company is also committed to protecting the environment and contributing to the prosperity of society.