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The Galfer Postmount Disc Brake Caliper Adapter +23mm This brake caliper adapter allows you to mount almost any PM brake on various rear frames and rear-mount forks.
Technical Specifications:
Adapter material: aluminum
Screw material: steel
Front brake disc size (diameter): 180 mm to 203 mm | 200 mm to 223 mm
Rear brake disc size (diameter): 180 mm to 203 mm | 200 mm to 223 mm
Manufacturer's weight: 26 g
Weight: 36 g (with screws)