Stainless steel brake disc XLC BR-X50

'Brake discs XLC BR-X50 .material: braking surface: Niro AISI 420; spider: aluminium 7075 .two-piece construction for reduced disc deformation under the influence of high temperatures .reduced heat transfer to the hub protects the bearings .weight: Ø 160 mm 106 g, Ø 180 mm 157 g.'