Just a guess but maybe the rollers were put there to centre the boat when
running it up onto the trailer?

"Mike" wrote in message
...
I have a 16' fiberglass boat. My trailer has bunks for rear support but it
also has rollers in the center of the trailer toward the rear and center
of
the boat. I'd like to get rid of the rollers and go strictly with bunking.
Any reasons why I wouldn't want to do this?

Mike