NIUNIU Bicycle Freewheel Threaded Hubs Disc Brake Rotor 6 Bolt Rotor Adapter Part STURDY STABLE MATERIAL: This disc brake rotor adapter uses quality aluminium alloy material which is high strength, anti-rust and durable. EXQUISITE PROCESS: Disc Brake Adapter is Fine CNC craftsmenship machining ensures the thread would perfectly fit your bike and this is an excellent accessory for your bike. SAFE BRAKE BIKE: This bicycle adapter can help you brake your bike quickly and stably which ensure safe and reliable experience. EASY INSTALLATION: Excellent hardness would withstand the abrasion of braking and easy installation for your bike. That would be a nice replacement part for your bike. Color: silver Size: diameter 44mm, hole spacing 22mm Quantity: 10pcs Kind tips: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.