Like lifting weights with a barbell how much weight can most guys do?Curling only please.
l can do the ez-bar with a 25 pounder on each side about 3 times.

with my back against the wall and using a curl bar about 100lbs, l weigh 158lbs, my nephew who weighs 180 can do 130

l can do 150 :) l weigh 155

That is one exercise l have never done my ''max'' on. l usually curl 120 pounds for reps, 2 sets of 10. l could do more with cheating, but this is one exercise where form matters quite a bit.