On 8/28/2012 2:58 PM, mark drillock wrote:
> Because the front bearing hubs are integral with the disc rotors it
> makes sense that the front uses bolts. Lower manufacturing costs for the
> rotors, which need periodic replacement. VW was keeping things simple
> and costs down, good things to do.

Rotor manufacturing and ongoing maintenance costs would have been even
lower if they weren't one piece with the hub, which can be expected to
rarely need replacement. The cost savings for the one piece hub/rotor is
only in the initial mfg/assy.