Excellent performance: The floating system design can reduce the deformation of the bicycle brake disc at high temperatures and reduce heat transfer to the center. CNC precision machining, high hardness, good wear resistance, excellent performance in dry and wet conditions, rapid ventilation, good heat dissipation, for excellent braking performance. Reduced heat transfer: The inner and outer frames of the brake disc are made of two different metal materials connected by rivets. On the other hand, flexible connections with a certain degree of freedom simultaneously reduce heat transfer and solve the problem of internal stresses. Good wear resistance, toughness, corrosion resistance, tensile strength, and resistance to deformation. Good braking performance: Do you want real, powerful braking performance when actively riding downhill or on winding roads? Then our 160 mm 180 mm brake discs fully meet your requirements. Before purchasing, make sure that the brake disc's hole spacing is 44 mm. Strong, thin, and light: The bicycle brake disc is made of aluminum alloy 7075 - high-quality T6 and 420 stainless steel, which has good hardness and toughness. Colorful and beautiful design, stylish and cool, anodized, corrosion-resistant. Please note that due to manual measurements and differences in display, there may be slight differences between individual products and images.