I've not tried different rotors to the ones I currently have on the bike, but with other bikes I have found that 160 on the rear was maybe toward the overkill end of the spectrum - 140/160 seems to be nicely balanced.
I like having a lot of power available at the front - my ENVE RD fork is setup for a 140, but I used an adapter to step it out to 160.
I've not tried different rotors to the ones I currently have on the bike, but with other bikes I have found that 160 on the rear was maybe toward the overkill end of the spectrum - 140/160 seems to be nicely balanced.
I like having a lot of power available at the front - my ENVE RD fork is setup for a 140, but I used an adapter to step it out to 160.