Bicycle Disc Brake Modification Bracket Bicycle Disc Brake Modification Bracket, 22mm, 32mm

1. Specifically designed for bicycles without factory-reserved disc brake mounting holes. Converts standard mountain, road, or folding bike frames to a disc brake system, significantly improving braking performance. 2. Offers two fixed ring inner diameter specifications: 20mm (approx. 0.79 inches) and 32mm (approx. 1.26 inches), fitting frames and rear forks with different tube diameters. 3. Forged from high-strength metal steel, wear-resistant and corrosion-resistant, capable of withstanding strong braking forces to ensure the disc rotor stays aligned during braking. 4. Uses a dual-screw clamping plate structure paired with standard caliper mounting holes for quick and secure installation. Easily locks firmly onto the frame with simple screw tightening, preventing loosening. 5. Compact and lightweight structure that delivers an efficient disc brake upgrade without adding extra burden to your ride.