Bloxstudio,
As most of the above replies have said, the rear disks don't do a lot as far as stopping power for the PT. If it's the look of 4 wheel disks your after, You can buy imitation disks at a few different vendors. Look carefully at my rear wheel...see the disk? The only thing that missing is a rear caliber. It fools nearly everyone... including me when I first saw them on a friend of mines PT.
