biceps are just that.. BI, meaning two
too many skinny kids sit there in front of the mirror jacking off to themselves doing 20 pound curls. lets face it, it is the under 25 crowd.
they should be doing weighted pullups, rows, etc. that is how you grow your biceps. the dudes with the biggest biceps in your gym didn't get them by doing 20 pound curls i assure you