Rear disc brakes for 5/8 studs

[Dragsinger]

The above post by Dale is correct. I doubled checked this morning, the rotors I have for the Super 10 have both bolt patterns.

I always find it surprising when you can look at an item yet never catch all the details. When you are looking for one specific fitment [it fit on my 5/8" studs] there was no reason to notice the second set of holes.