Dixcel FS Type Brake Rotor Rings PairBy increasing the carbon content by 20% compared to conventional FC materials, the carbon particles that are entangled like a network strengthen the bonds between molecules! Heat treatment and slit achieve higher stability and higher braking force. It maintains unparalleled stability and a high coefficient of friction. The special heat resistant coating also has an excellent rust prevention effect. Flexible surface hardness improves pad bite feeling!