Not so much. A good fit that is developed over a few rides works well. Having large hands I purchased the Ergon GP2 grips. They have a stubby bar end that you can have a couple of holds on but the grips themselves have eliminated the majority of discomfort on longer rides. I did recently get an FSA Carbon flat bar which I'm told will help obsorb additional vibrations that cause discomfort. We shall see. Like others said you can also get aero type bars and you could even mount bar ends closer to the stem for additional positions. But, a good fit usually works.