Brake lever pivots have been positioned to increase power and improve ergonomics when riding on the hoods.
Shimano 105 ST-R7000 105 Double Mechanical 11-Speed STI Levers Double Left Hand
Shimano 105 FC-R7100 105 double 12-speed chainset; HollowTech II 170 mm 50 / 34T
SHIMANO ROAD 105 R7000 Rear Derailleur 2x11S Short Stick 35, Black
Shimano R7100 105 cassette 12 speed 11-34t
Shimano 600/105 groupset
Shimano Ultegra / 105 SM-BB72-41B Press Fit BB86 Bottom Bracket / 86.5mm