I looked it up, Each wheel is about 4lbs.

2200 is about 5lbs for a wheelset.
You can go a lot lower then that too. It depends. I rock b43's and they look cool. I definitely feel the extra weight climbing or starting from a stop. I don't mind it so much anymore but when I first got them and I had a fat tire, I nearly lost my mind and sold my bike I hated it so much.