These centerlock adapters from KCNC are designed to allow the use of standard ISO 6-bolt rotors with DT Swiss and Shimano centerlock hubs. Since Shimano is the only manufacturer of centerlock rotors, adapters such as these make possible the use of more widely available rotors, as well as exotic and lightweight options.
First, sandwich the rotor between the adapter's splined inner plate and the outer pegged plate, then attach the assembly to the hub. Once fitted to the hub's centerlock mount, a Shimano cassette lockring tool is required to properly tighten the threaded lockring. If a torque wrench is available, tighten the lockring to 40 Nm.