I'd be surprised if the crabon frames have much of a rider weight limit.
The reason not go crabon is that CX bikes seem to get crashed quite a bit, and an alu frame will be a little bit more revealing of any structural damage.
Probably no weight limit but I have a thing about not spending a few hundred for a lighter frame when I can achieve the same weight savings by spending a few hundred a month less on takeaway.
Ooh, they got an orange one.
(Full hydraulic 1x drivetrain and Alu frame for fatties).
Might visit mum soon, it's only one junction away from Eastwood.