Originally Posted by
msu2001la
There's zero difference in performance between 6-bolt and centerlock.
With respect to the hub, I am 99% in agreement. One of the threads in one of my six-bolt hubs is a bit tight, possibly damaged from cross-threading. I am very careful with it so as not to do further damage, but at some point I might have a 5-bolt hub. That is where the 1% (or whatever) difference is, with respect to the hub.
The center-lock Shimano rotors seem to have better heat dissipation fins than their six-bolt counterparts. That's a design choice, rather than some inherent limitation of the attachment mechanism, but it might lead to better performance (my splined rotors seem to last a lot longer than my 6-bolt ones).