Combining great style and comfort, these grips provide a soft, non-slip surface that dampens operating vibration. Recessed area between the ISO Pads permit air movement for added comfort in hot weather. Note: These grips are not compatible with bar-end weights found on many bikes. Usually, removing these weights is a simple affair and the vibration absorbing quality of the ISO-Grips more than compensates for the vibration damping lost by removal of bar-end weights. Please make sure removing bar-end weights or stock grips will not affect the installation of ISO-Grips.