AZ-J
Riding where it's hot!
That is sweet! Please forward the link for the carbon wheels, I have been considering the same upgrade for my RS.
Here's one place selling them in the US. The price is higher for the pair than I paid, but it has been six months of economic turmoil, so I can't explain that.
They should fit the ST just fine. You will need a set of rotor screws as well. You can't re-use the one's that come off with the rotors. But you cannot believe the difference in the ride of the bike once the wheels are on.