Specification: Condition: 100% Brand New Item Type: Bike Hub Center Lock Material: Aluminum alloy + stainless steel washer Size: approx. 5x5x1.5cm/2x2x0.6inch Package List: 1 x Bike Hub Center Lock Excellent Hardness: Because center lock adaptor is made of metal, bicycle hub center lock adaptor has excellent hardness, can withstand the wear caused by braking, and can adapt to our long-term use. A Unique Threaded Design: Center lock disc brake rotor has a unique threaded design for effective and direct bike braking. Is the standard center lock 6-bolt disc brake rotor adapter. Convenient to Install and Disassemble: Disc brake rotor for Bicycle has a simple shape and dirt resistant color, which can not only protect your bike, but also play a decorative role. Lock adapter is suitable for mountain bikes, and it is very convenient to install and disassemble. Aluminum Alloy + Stainless Steel Washer Material: Adapter is a bicycle hub center lock, made of aluminum alloy + stainless steel washer material, manufactured in strict accordance with production standards, with reliability. Practical Accessories: Bicycle accessory adapters are practical accessories for DIY cyclists, which can be installed and replaced by themselves.