Originally Posted by rs shawn

jarnok The two bolts were probably fitted to hold the disc in place whilst the caliper was fitted.

How come the cossie discs have no retaining/positioning screw like most other discs?
I know the main wheel bolts hold it in place when fully fitted, but it
1: holds the disc in place with no wheel fitted
2: stops the hub from rotating when lining the wheel up with the wheel bolt holes.