Description: With CNC precision turning craftsmanship, eccentric screw hole design, and advanced anodizing technology, the disc brake adapter has high strength, corrosion resistance. With simple structure, the disc brake adapter is easy to install. The upgrade large discs can make your brakes faster. This series of adapter can match 180mm, 203mm diameter discs to improve the braking force by increasing the disc strength. Made of high quality aluminum alloy material, the product is sturdy, corrosion resistant, and durable. The length of the product is 8cm, the width is 4cm, and the height is 2cm. It fits for front rear 180/203mm disc. Item Name: Brake Rotors Adapter Material: Aluminum Alloy Craft: CNC Size Details: Size: 8cm x 4cm x 2cm/3.15" x 1.57" x 0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Please confirm the front fork and the frame before purchasing the appropriate adapter, A-pillar (direct-mounted brake seat, installation hole center distance 75mm), B-pillar (side-mounted brake seat, installation hole center distance 51mm). 1: Type A: A-pillar front and rear 180 black: the center distance is 73cm, suitable for front and rear 180mm discs; 2: Type A: A-pillar front and rear 180 green: the center distance is 73cm, suitable for front and rear 180mm discs; 3: Type B: A-pillar front and rear 203 black: the center distance is 73mm, suitable for front and rear 203mm discs; 4: Type C: B-pillar front 180 and rear 160 black: the center distance is 50mm/72mm, suitable for front 180mm and rear 160mm discs; 5: Type D: B-pillar front 203 and rear 180 black: the center distance is 50mm/72mm, suitable for front 203mm and rear 180mm discs; 6: Type D: B pillar front 203 and rear 180 green: the center distance is 50mm/72mm, suitable for front 203mm and rear 180mm discs. Package Includes: 2 x screws 1 x brake rotors adapter