Parameter: 1. Weight: 160mm 103g, 180mm 144g, 203mm 185.5g 2. Diameter: 160mm, 180mm, 203mm 3. Material: stainless steel brake disc + aluminum alloy bracket 4. Hole distance: the center distance of the hole is 44mm (international standard six-nail disc) 5. Model: FD-01 6. Color: black, red, blue 7. Description: 6 screws for a disc Features: 1. Aluminum alloy lightweight design, higher strength and hardness 2. Fast air circulation, good heat dissipation capacity 3. Good dry/wet performance, wear-resistant and durable 4. The brakes are more stable and reliable 5. Easy to install and use, widely applicable