Originally Posted by
MoAlpha
All of the above!
Deadlifts, abs, deadlifts, squats, and maybe a few deadlifts. For me, at least, it's all about using the glutes to cantilever the trunk low over the bike without overworking the back extensors or weighting the arms.
Yeah, along those lines, one of the things that hasn't yet been mentioned is fore/aft saddle position, which can really affect weight distribution - it's hard to cantilever your torso when your CoG is too far forward.