U.S. Patent # Des. 411, 432 Combining style and comfort, Küryakyn ISO™-Grips are a quantum leap forward in handgrip design. Like the popular ISO™-Pegs, these grips provide a soft, non-slip surface that dampens operating vibration. Recessed areas between the ISO™-Pads permit air flow for added comfort in hot weather. The knurled accent ring adds a classy detail. Note: These grips are not compatible with "bar-end" weights found on many bikes. The majority of the time, removing these weights is a simple affair and the vibration absorbing quality of our ISO™-Grips more than compensates for the vibration dampening lost by removal of the bar-end weight.