I want to build a new roadbike and, right now, the Cannondale Supersix Evo (with Press Fit BB30 bottom bracket) is on the top of my list. I want to use a full Shimano Dura Ace 7900 Groupset including the 7900 crankset, which will only fit with adapters. As far as I know there are roughly two "adapter systems".
To me, the adapters in the larger pictures seem to be the better solution, because they seem to put less stress to the frame, that is at least my impression as a non engineer. Does anyone here have any experiences with such adapters, I am thankful for any information or advice. Thank you in advance.
Best wishes from Germany