Outdoor diameter [mm]: 283.6 / brake disc thickness [mm]: 22 / centered diameter [mm]: 59 / height [mm]: 43.4 First level quality and performance. Our discs are tested in all temperature and pressure situations to guarantee their safety - in accordance with ECE -R90 legislation. Security and comfort for the driver. High technology: better thermal dissipation and greater resistance to high temperatures. Discs with high carbon density, so that they last longer and vibrate less.