SRAMs CenterLine X rotor works with all SRAM and Avid rotor disc brakes.

Know that its available both for six-bolt and CenterLock mounting, so you can find a Centerline X rotor for all your wheels.

The main difference between the CenterLine and the CenterLine X versions are that the X has an alloy center section rather than being a one-piece design. The brake track is made of stainless steel, and while the shaping and cut-outs are early identical on both rotors (for dirt-clearing and noise reduction) the edges of the X have been relieved a bit more to keep weight to an absolute minimum.

Cyclocross sizes are 140mm and 160mm. 140 is typically rear only. Road is typically 160mm. A 180mm version is available for those who are heavy or are doing extensive descending. Weight is 86g for 140, 102g for 160, and 125g or 180.

The SRAM CenterLine X Rotor is light, quiet, and durable.