Description: 【MATERIAL】: The bike disc brake rotor is made of aluminum alloy and high carbon steel, providing reliability, wear resistance, and a long service life. Diameter 16cm/6.30inch, Thickness 1.55cm/0.61inch, Center Distance: 35mm 【HEAT DISSIPATION】: With its unique design and material, it effectively improves heat dissipation, preventing overheating and ensuring stable braking performance over long periods 【DESIGN】: Mountain Bike Brake Rotor adds an aesthetic touch to your bike while providing great braking power 【LIGHTWEIGHT】: Hollow out design, bicycle disc brake rotor is more convenient and lighter than other brake rotors, stable, and high performance 【WIDELY USED】: The bike disc brake rotor is suitable for mountain bikes, road bikes, great accessory for your bike. The package comes with 1 bicycle disc brake rotor and 6 screws, providing everything you need for a quick and easy installation Specification: Material: Aluminum Alloy, High Carbon Steel Size Chart: Diameter 16cm/6.30inch; Thickness 1.55cm/0.61inch Package Includes: 1 Bike Disc Brake Rotor 6 Screws Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.