TiLT calls this clamp the Classic for a reason. Its iconic design stands out in a sea of options despite being so simplistic. TiLT's hardware comes with 50% larger threads and will provide superior clamping power so that your bar will not slip. The bolts are also unlikely to seize to the clamp thanks to the pre-applied anti-seize. The Classic Double Clamp is designed to Oversized bars, and doesn't come with a shim for standard size bars.