I'm just searching for the Ultegra 8000 52/36 and there is a BBR60 that should screw straight into my frame, will be checking with Sigma tomorrow
I'd love a full on Carbon bike but there's a small problem

, well not so small really

, well it's a mammoth problem really

.
I'm just too heavy for most of the bikes out there that quote weight capacities (I'm fairly certain that most manufacturers work to the same limit more or less). 90-110kg seems to be the upper limit

. I'm looking at the Mason bikes due to the ability to tune the wheelsets for weight. Also I'm more inclined to trust a metal frame for resilience. Once the spare has shrunk a lot I'll be looking at another bike/frame possibly carbon.
Anyway I'll have to sort out putting the BMC AC02 on the kickr tomorrow.