There is a bunch of info available on determining the correct sizing/fit for the tri position on the aerobars.
One subject that seems largely overlooked though, is the correct fitting for base bars.
I understand that in theory, one should spend almost all of your time in the aero position. In practice though I’ll be doing my training either in traffic where I spend time defensively on the brakes, or climbing over a mountain to reach flat, lightly trafficked roads on the other side. Either way, I’m going to spend a ton of time on my base bar and want to get something that fits well.
Width is the easy measurement; I know I need a 40.
But what about length, height, and manufacturer?
Any suggestions for how to find the right base bar?
Note - I have a 3.5" (8.9cm) drop from my saddle to my aerobar pads. The aerobars are Syntace C2 in the small size, cut even a bit shorter than that. And, the basebars that came on the bike (profile?) are nearly as long as the aerobars, which seems wrong.