Standard-material brake disc for the classic Mini Cooper S; suitable for road application. The Cooper S disc is 7.5" in diameter and .375" thick when new. As they wear thinner, they become more prone to overheating and then warping. Sold each. Ref: 21A1265E, 21A1265, GBD101, GBD101MS, BDC3087.
See also GBD0101 for the same disc in a superior material that better resists warping. See C-21A1265 for hi-spec grooved rotors.