The 6 bolt rotor is the 'standard' rotors amongst the disc rotors. It does get attached to the hub by 6 bolts (also see 'How to replace your worn out disc rotor') - red arrows.
On a center lock rotor, the rotor gets attached to a specific surface on the hub, by one single lock nut - blue arrow. We don't have center lock rotors in our range but have an adapter that allows 6 bolt rotors to be fitted to centerlock hubs (details here) - click on the image to enlarge.
For further details about installing our 6 bolt rotors with the help of our center lock adapter (OBE-BCLA01), please click here for the step-by-step guide.
