Over the last 30 years, bicycles have undergone massive changes. Today's bikes are living far beyond what 1989 thought possible, However, one part hasn't seemed to change. The brain bucket, the cerebral cradle, the thinking man's protection. The helmet. Recently, Trek unveiled the biggest change in helmet technology is the last 30 years. This technology has proven to be safer than any helmet technology prior. The big question is what the devil is it?