I've killed a couple of bear and I wouldn't drag one an inch. I carry a pack frame and enough game bags to handle whatever I'm hunting. On bear I use the gutless method and skin out one side to the paws and cut the feet off and then bone the meat. Roll it over and repeat the process. After it is skinned up to the head I cut the head off and roll the hide up and put it in a game bag. Leave the bones and guts where it fell. Figure 2 or 3 loads on the pack frame to get it out of the woods and into coolers.
Boning and skinning cuts the weight down, helps it cool quicker and protects the hide.