Compatibility:Rear IS mount (Frame): This adapter will only work with 160 mm. .Front IS mount (Fork): This adapter will only work with 180 mm. . The caliper and adapter extend out from the mounting . Clearance between the mounting holes is required. Tested with For , For and For flat mount calipers. IMPORTANT : This will not be compatible with all IS mount frames and forks. Colour:Black Material:Aluminum alloy Package Contents: 1x Flat Mount Disc Brake Adapter 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.