A weighted shift knob is a type of gear shift knob that has added weight to it, usually in the form of metal or dense material. The purpose of the added weight is to provide a more substantial feel when shifting gears and to give the driver a better sense of control over the gear selection. Additionally, the weight of the shift knob can help reduce the force needed to move the shifter, making the gear changes smoother and more precise.
In performance driving, a weighted shift knob can also provide a more satisfying and connected driving experience, as the added weight can enhance the feedback the driver receives when shifting gears. Some drivers also find that a weighted shift knob helps to reduce the amount of wear and tear on the shifter mechanism over time.