A. 2 Bicycle Frame Conversion Bicycle Disc Brake Adapter Brackets, Suitable for Mountain Bikes B. Product Features 1. Made of stainless steel, it is durable, nicely designed, and easy to carry and use. It has a reasonable price and good quality. 2. This conversion bracket can convert an ordinary bicycle into a disc brake bicycle for modification at the position where the original bicycle was not equipped with disc brakes. 3. It is a useful bicycle accessory and a necessity for cyclists. It is practical and can convert an ordinary bicycle into a disc brake bicycle. 4. Disc brake bracket sets of 20 mm or 31.8 mm are available. 5. It is suitable for many bicycles. C. Product Specifications 1. Type: Bicycle Disc Brake Bracket Frame 2. Color: Black 3. Material: Stainless Steel 4. Component Type: Brake Lever 5. Applicable Bicycle Models: Mountain Bikes 6. Inner Diameter of Grip Ring: 20 mm/32 mm (optional) 7. Purpose: Convert an ordinary bicycle into a disc brake bicycle D. Package Contents 1 Bicycle Disc Brake Bracket Frame