1、Durable Steel Material: Made of steel, these bike disc brake rotors are designed to withstand humid environments and provide excellent stability for long distance use. 2、Easy to Install On Disc Brake Frames and Forks: Inner hole size is 37mm, these discs are easy to install on disc brake frames and forks, ensuring a seamless fit and optimal performance. 3、Reliable Performance: These steel disc brake rotors provide consistent and reliable braking power, allowing you to ride with confidence in various weather conditions and terrains. 4、Enhanced Heat Dissipation: The steel construction of these rotors helps dissipate heat effectively, reducing the risk of brake fade and ensuring smooth and responsive braking performance. 5、Versatile Design: Suitable for both mountain bikes and road bikes, these disc brake rotors offer versatile compatibility, making them a great choice for any avid cyclist. Item Type: Bicycle Disc Brake Rotor Material: Steel 1 x Disc Brake Rotor