Originally Posted by
seypat
Refresh my memory here, since the thread may evolve. Does disc technology have it's standards, or is it mostly companies with proprietary products fighting it out to become THE standard? That's a whole different can of worms if the latter.
It's pretty much set in road terms, other than the freedom of choice between 140mm or 160mm rotors. There's also the method of fastening the rotor to the hub, Centerlock vs 6-bolt, but CL is the more versatile of the two and seems to be pushing 6-bolt out to pasture.