Thickness: 20,4 mm, Appr. stamp: R90 Homologated, Length: 156 mm, Number of wear indicators: 2 Per axle, Height 1: 71 mm, incl. wear warning contact, without accessories, Brake System: ATE, WVA Number: 20676, WVA Number: 21938, WVA Number: 21939, Directional