ZTTO Bike Disc Brake Adapter Aluminum Alloy Brake Fixed Seat Adapter Converter Road Bike Brake Accessories Features: High-Quality Materials: Made of premium aluminum alloy and stainless steel, the disc brake adapter is sturdy and has nice durability, wear resistant, and rust resistant. Improved Brake Performance: Convert your old road bike's V-brakes to disc brakes to enhance braking performance and efficiency. Enhanced Sensitivity: The upgraded disc brake system is more responsive than the originals brake system, providing strong braking power and shorter braking distances. Easy Installation: Easy to install and use, the adapter is designed to upgrade your road bike's braking system and improve braking performance. Compatibility Note: Please ensure compatibility with your bike frame before purchasing. Check the position of the rear hook on your frame and compare it to the sizes provided. If there is a significant difference, it is recommended not to purchase for avoiding installation issues. Specifications: Color: Black/Red/Blue/Purple/Titanium/Gold/Multicolor(optional) Material: Aluminum Alloy + Stainless Steel Item Size: 121 * 75mm/ 4.8 * 3.0in Item Weight: 120g/ 4.2oz Package Size: 125 * 80 * 20mm/ 4.9 * 3.1 * 0.8in Package Weight: 125g/ 4.4oz Packing List: 1 * Disc Brake Adapter