With guys like Ribeiro, Gretzky, Koivu, Gilmour, lots of others but Forsberg and Peca come to mind, they don't seem to keep their season-opening weight very well. So I'd expect that was a generous 175 to begin with, but he's probably down to 160 by this point in the season.
6'? Really??? I didn't think he was taller than Theo or Saks! Sure didn't seem so when I saw them live (except for Ribs' mohawk hair - maybe that's adding a couple of inches).
Ribs needs to seriously hit the weights a bit in the offseason. The few extra pounds certainly won't harm his speed(he really doesn't have any) but may make him harder to knock off the puck.