Bigger tyres inherently create more rolling resistance. The reason they can perform better in the real world is because they are the only real source of damping on the bike and because they enable safe use of lower pressures. But as long as you can stay in the operaring window of the narrower tyre, it will perform better than a wider tyre for the same percieved comfort/casing tension. And also it'll be aerodynamically faster and less affected by crosswinds.

Frame flex doesn't measurably affect power transfer, only effect it has is mental and on handling. Too much stiffness, does however worsen the damping ability of the system, slowing you down on rough surfaces, and creates more physical and mental fatigue.

Yeah, but I've never heard of any other chains snapping as much as YBN

I believe they are the oem for speedplay power pedals

Unless they changed it for the new releases, the fd has no logic or wireless signal reception. It's a slave unit to the rd which has all tge "brains", so you would need an rd that supports this.

These look new. Probably got the same criticism in china

How thick do you think a carbon tube's walls are?

Actual market leaders (i.e. CRW Works, Roval Rapide CLX II) don't use v-shape profiles. Zipps are trash tier wheels in general.

CRW were never a market leader in rim design. What they actually excel at, is hub design, and they were the first ones brave enough to actually make proper use of carbon spokes and significantly reduce spoke count. The hubs are where their weight gains came from and spoke count is where their aero came from. The profiles of their first 3 sets are all a very safe, slightly dated design, they won't give you amazing aero on their own, but they won't wreck it either.

Roval front is mostly an exercise in crosswind stability improvement. It's actually vaguely eliptical/toroidal but at that depth to width ratio, you kinda have to make it with a very wide radius nose. The rear is just a straight ellipse.

If you wanna talk other market leaders, scope are just straight up an ellipse, DT Swiss (designed by swiss side) also get more elliptical the deeper they go. Newmen are parabolical with large radii on the front. Bontrager aeolus are all parabolas with very sharp noses (and they're well regarded for their stability, interestingly enough), very similar to HED and Enve.

So there are many ways to design a rim and convergent evolution hasn't quite settled on a single approach just yet. I'm starting to think the industry moved away from the theoretical best - which is likely a toroid - because the need for a rim brake track kinda compromised its advantages and pushed design toward parabolas and U shapes that bulged out closer to the nose. Now that disc brakes got rid of that problem, it's moving back towards toroids.

Fully with you on the Zipp hate train though.