Campy 11 speed on 10 speed rings?

[sam.g]

So I'm changing over a well worn 9 speed DA bike to Campy and seriously looking at the current silver 11 speed Athena group. Currently my crankset is a Ritchey Logic with 50-34 TA Syrius chainrings. These are rated 9/10 speed.

Do I need to replace my crankset or at least the chainrings to run 11 speed Campy? FSA makes compact 11 speed rings but i'd rather not have to make that additional investment.

Sam in Cincy

[oldpotatoe]

So I'm changing over a well worn 9 speed DA bike to Campy and seriously looking at the current silver 11 speed Athena group. Currently my crankset is a Ritchey Logic with 50-34 TA Syrius chainrings. These are rated 9/10 speed.

Do I need to replace my crankset or at least the chainrings to run 11 speed Campy? FSA makes compact 11 speed rings but i'd rather not have to make that additional investment.

Sam in Cincy

No. I had a Record 10s crank onto my 2009 Record 11s Moots for 2 years w/o issue or problem.