Formula disc brake adapter for all modelsProduct Description Adapter for all Formula brakes. The brake calipers of the Formula brakes have a post mount. In order to mount the brake on forks or frames, certain adapters are required. Models:Front IS 160 mm: Brake Caliper: post mount (PM 6" )Brake Mount (Fork): international standard (IS)Front Rotor Size: 160 mmManufacturer Number: FD40140-10 Front IS 180 mm / Rear 160 mm: Brake Caliper: post mount (PM 6" )Brake Mount (Fork / Frame): international standard (IS)Front Rotor Size: 180 mmRear Rotor Size: 160 mmManufacturer Number: FD40141-10 Front IS 200 mm / Rear 180 mm: Brake Caliper: post mount (PM 6" )Brake Mount (Fork / Frame): international standard (IS)Front Rotor Size: 200 mmRear Rotor Size: 180 mmManufacturer Number: FD40145-10 Front IS 203 mm: Brake Caliper: post mount (PM 6" )Brake Mount (Fork): international standard (IS)Front Rotor Size: 203 mmManufacturer Number: FD40164-10 front 6" PM 180 mm: Brake Caliper: post mount (PM 6" )Brake Mount (Fork / Frame): post mount (PM…19,99