You specifically need this adapter if your current brakes lack sufficient power and you want to upgrade to a larger rotor (for example, from 160 mm to 180 mm on a mountain bike or e-bike). The adapter is universally compatible with Shimano, SRAM, Magura, or Avid Postmount brake calipers.
Mounting type: This is a Postmount-to-Postmount (PM-to-PM) adapter.
