Originally Posted by [COLOR=Black
MichaelW[/COLOR]] The EBB maintains a contant disc-caliper position.
Originally Posted by http://sheldonbrown.com/singlespeed.html#disc
Also, as the chain wears and the axle is moved backward to take up the slack, the relationship of the disc to the caliper will change. That can't be good.
This may be why it has an Eccentric BB and Vertical Dropouts, as said above.