i took my mc21 into 'the chain gang' here in Brisbane and they said they had never made any disks with the same measurements and would have to custom make one for me for $200+ . ill give them a ring about the cbr600 tho, any particular year cbr600?

and is there any difference performance wise by getting it made wavy? the only difference i can think of it that it might cool more effectively whilst also weighing a bit more than a standard disc.

Tim