Originally Posted by
elcruxio
The 2023 TdF stage 16 really drove in the importance of aerodynamics vs weight. Vingegaard did the whole TT with his "heavy" Cervelo P5 with a disc rear wheel no less, whereas Pogačar swapped to a much lighter "climbing" bike before the 2,5km 9 % climb at the end of the stage.
Yes, aerodynamics may be more significant than weight on a climb, but that depends on how fast the rider is going.
When the best cyclists in the world are going full gas up a 9% grade, they're still moving fast enough that aerodynamics is significant.
For the rest of us on a 9% grade (actually, the end of TdF TT was an 8.5% grade), we're better off dropping as much weight as possible and ignoring the aero.