I have a 10 speed DA crankset currently on my bike, so I am assuming I would need a ten speed chain rings. But wouldn't nine speed chain rings also work on a 9 speed or ten speed shimano crank set? Anyways, I also have a nine speed Ultegra crankset set up on my training bike so I guess I could use either one.
I have a FSA Carbon Pro TT 55t and a 42t Shimano DA to go with it. I took it off my Dura Ace 7800 cranks as I can't push these with a 95-100 cadence in the shape I'm in - maybe someday? Anyway, I'll send you a pic. Adam