Bicycle grips are a part of the bicycle handlebar that allows the rider to hold the handlebar comfortably while riding. Bike grips can be made of rubber, silicone, leather or other materials, and are generally designed to provide a non-slip, comfortable grip for the rider's hands. It is important to choose bike grips that suit your hands and riding style, as poorly fitting grips can cause pain or numbness in the hands and wrists while riding.