R1 Rotor Direction

[Spilner521]

Non-directional vane brake rotors are like non-directional tires. You can mount them however you want and whichever way you think looks good and either way won't negatively affect performance.

[CactusWill]

The diagrams posted in this thread appear to reference directional rotors.

[[ion] C2]

Yes, they do. With directional rotors you want the air vented outwards so as to act as a centrifugal pump. Since the R1Concepts rotors' internal vanes are not curved, you CAN mount them any which way you want, but logically, you'd want to mount them such that the external slots are forcing the gases/water outward to the edge of the rotor rather than toward the center of the hub.