Optimized Performance: Upgrade your road bike with for CNC Aluminum Alloy Disc Brake Adapter. Designed for precision and durability, this adapter allows seamless conversion to accommodate 140mm and 160mm disc brake . Construction: Crafted from high-quality CNC machined Aluminum Alloy, this brake adapter ensures robustness and , standing up to rigorous cycling demands. Easy Installation: The adapter comes with a straightforward installation process. Compatibility: Perfectly fits a wide range of road bikes, this bracket is engineered to boost your bike's performance by ensuring a stable and secure mount for the disc brake. Product Name:Road Bike Adapter Installation Torque:8Nm Installation Tool:3MM Hex Key When the rear disc is 140MM, no adapter is required. Weight:Rear 10g (including screws) Specification:Rear Color:Black Material:Aluminum Alloy Package Contents: 1 * Disc Brake Adapter 2 * screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.