It has less to do with the bike and more to do with experience. It has zero to do with the tires, the grips, or even the weight of the bike. As light as we'd like to think our bikes are, full of fuel they are over 370 pounds, within a few pounds of many other middleweight motorcycles.
Here's a thread with some tips on how to handle wind on the bike. Make sure to check out
this sticky thread which has some good tips on other facets of riding.