While this was briefly alluded to earlier, this deserves a closer look. As anyone who has ever ridden on a bike knows, there can be bumps and jolts along the way. This is especially true if you enjoy trail riding or riding on dirt roads. When you begin to vibrate on your bike, the first body part that feels it is your hands as they are essentially the steering wheel. Thus, there needs to be a way for the bike to absorb some of this vibration to put less stress on your hands and subsequently your upper body.
Well, this is where shock absorption or vibration dampening technology comes into play. With the grips absorbing a brunt of the vibrations, your overall body will not fatigue as quickly. In addition, your hands will not begin to feel numb as a result of the sheer amount of absorbed vibration.