6d atb 1t helmetthe atb 1t helmet from 6d is the latest technology in bicycle helmets the demand for a superior head protection has never been greater and 6ds exclusive omni directional suspension ods system provides just that superior head protection when you need it designed to mitigate critical angular acceleration force and low threshold impact energy while maintaining all of the necessary protection for extreme impacts as well the atb 1t helmet is the pinnacle of bicycle helmet prote