Magura MDR-P Rotors. Features: The most powerful rotors in Magura's portfolio Optimized for E-Bike but excellent for other demanding applications, DH for example Two piece design featuring Dovetail Interlink Technology, a patented interlocking of the outer and inner rings. Interlocking provides additional support when the outer ring expands due to heat Magura rotors utilize a 2.0mm thickness for optimum performance Not compatible with Center Lock adapters 6-bolt rotors include: (1) 6-bolt/44mmBCD rotor with (6) T-25 rotor mounting bolts Specs: Model:MDR-P Description:rotor kit Mount:6-bolt