Description: * brand new and high quality *Made of high quality material, and practical to use *For Front & Rear Disc Brake *For +20mm Rotor Size (Above Standard Mount) *For Post Mount Brake Caliper *For PM Mount Fork/Frame *our brake caliper and frame/fork fixing will be either PM (Post Mount), or IS (International Standard) Mount. *IS = 51mm (centre to centre) *PM = 74mm (centre to centre) Specification: *Material: Stainless Steel *Color: Black (As Pictures Show) *Weight: About 20g *Model: Post +20mm Package Includes: 1 x Disc Brake Adapter Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Compatibility - For-SRAM 20mm Post-Mount Disc Caliper to Post Mount Frame/Fork Adaptor New Good Performance Materials - These bike accessories are made of premium material, ensuring their durability and long-lasting performance. Optimal Performance - These accessories offer versatility and adaptability to different cycling needs and provide optimal performance and reliable functionality enhance the riding experience and ensure safety. Easy Installation - These accessories can be easily installed on your bike to get your bike running again. After-sale Serive - We provide high quality products, if there is any problem with our product, please contact us.