Disc Brake Caliper Frame Adapter Bracket - Engineered from aviation aluminum alloy with a black finish. This disc caliper mount adapter provides a strong, lightweight solution for mounting brakes. - Available sizes: 140 mm, 160 mm, 180 mm, and 203 mm. Versatile Mounting Options - Interchangeable adapter for front and rear brakes. - Supports both post mount PM and standard IS mounts. - Offers a range of sizes and configurations to fit most brake setups. Enhanced Compatibility - Fully compatible with B-pillar front forks and frame rear forks of varying sizes. - Accepts discs in 140 mm, 160 mm, 180 mm, and 203 mm sizes. - Delivers reliable performance and optimized braking efficiency. Lightweight Construction - Made from aviation aluminum alloy for durability and strength. - Maintains a low overall weight to support performance-focused riding. Use scenarios - Scenario 1: Upgrading an older bike to modern disc brakes. Use this adapter with PM or IS mounts to fit 140 mm to 203 mm discs on the front or rear. - Scenario 2: Cross-compatible builds. Configure front PM or IS rear mounts on a frame with differing fork and frame standards, enabling flexible brake setups across bikes. - Scenario 3: Heavy-duty or mixed-discipline riding. Choose larger discs (180 mm or 203 mm) while keeping weight down thanks to the aviation aluminum alloy construction.