Dura-ace 7800 10-speed Crankset and 9-speed compatibility

[News]

All of my bike is Ultegra 9-speed so can I put a Dura-ace 7800 crankset
10-speed
and using 9-speed chain and 9 speed cassette, It's ok? or I will have some
shifting problem?

 

[Moto Ace]

No worries.
It'll work just fine.

 

[Qui si parla Campagnolo]

News wrote:
> All of my bike is Ultegra 9-speed so can I put a Dura-ace 7800 crankset
> 10-speed
> and using 9-speed chain and 9 speed cassette, It's ok? or I will have some
> shifting problem?

No problem, just put it on, adjust FD and go ride.