The RAM® Grab Handle Bolt Adapter Base is the ideal base for installing RAM® Mounts on a grab handle, or any motorcycle with an M8 threaded bolt. With a hollow center, you are able to feed an 8mm bolt or smaller to screw into your vehicle's grab handle for a stable mounting base with no drilling required. Keep your windshield clean, and your phone mount out of the way with this grab handle mount for phones, GPS devices, GoPros and more! For motorcycles, simply place our easy to install ball base onto the motorcycle handlebar top clamp and you're done. After that, a world of mounting possibilities just opened up. Any motorcycle, or vehicle, which employs an 8mm bolt or smaller on its structure is compatible with this product. A smaller bolt can be used, though the load capacity decreases with the bolt size.