Disc Brake Caliper Frame Adapter Bracket Black, aviation aluminum alloy Material and sizes Engineered aviation aluminum alloy disc caliper mount adapter in black. Suitable for brakes and available in rotor sizes 140 mm, 160 mm, 180 mm, and 203 mm. Mounting versatility Interchangeable adapter for front and rear brakes, with options for post mount PM and standard IS mounts. Offers a range of sizes and configurations to suit most brake setups. Compatibility and reliability compatible with Bpillar front forks and frame rear forks of different sizes, accommodating discs of 140 mm, 160 mm, 180 mm, and 203 mm. Provides reliability and optimized performance. Lightweight construction Constructed with aviation aluminum alloy material, delivering durability and strength while keeping overall weight minimal. Use scenarios Scenario 1 You are upgrading rotor size or switching mounting standards on a bike with PM or IS caliper mounts. This adapter provides a bridge between mounting standards and supports 140–203 mm rotors, enabling seamless compatibility across front and rear brakes. Scenario 2 A bike with a Bpillar front fork and a rear frame fork of different sizes requires a single adapter to accommodate multiple rotor sizes (140/160/180/203 mm) and both PM and IS mounting options for front and rear brakes. Scenario 3 In a or on a multibike setup, quickly adapt to different brake standards and rotor sizes without changing calipers or forks, ensuring reliable performance across configurations.