I'm really interested in the overall robustness of the front end assembly design and stiffness. I am considering this frame but I'm just under 100kg. I haven't seen details about how the stem connects to the steer, and the bolts on top could be proven (Cervelo's design) or it could be a weak point (axial tension force spread across only two fasteners with play that creates a lever).

Thanks in advance for any insights you can share.