The PROTO Half Knuckle double clamp is one of the strongest and most reliable double clamps on the market hands down. This is a clamp, and is not a compression system. It is made to work with both standard and oversized bars, and is a great clamp compatible with HIC, ISC, IHC and threaded compression systems. With a huge array of colors to choose from, if you want one of the strongest clamps out today, consider the Proto Half Knuckle Clamp.
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