Hi gtr jet, thanks for your interest, the specs of the rotors are DBA series 4000 "T" slotted, these are hardened and ground they are 343mm dia and 32mm thick, they are arguably the best rotors made in Australia, this is why they were selected.
These DBA rotors are custom made and will only suit the offset of our dog bone brakets. spare rotors are available when needed but you would be doing well wearing these things out. I could give you the order number but you would have to find a DBA distributer and there is a minimum level you would have to order.
One of the reasons we decided to make this kit was becuase my mate bought a cheap imported kit that didnt impress us.......the problems were the supply of spare parts and the quality, we needed to buy rotors and they said we had to buy the entire kit again to get them.
So our thinking was that there was a need for a top of the line kit that was still within peoples budget with replacement parts readily available, and made proudly locally in Australia.