Renthal Duo Integra Split Direct Mount DH StemRenthal's revolutionary Integra stem combines high strength with ultra low weight. The horizontally divided, two-piece clamp, allows the use of just six bolts to vastly reduce overall weight. An ultra-wide, 64mm handlebar clamp increases torsional rigidity. Superior strength and structural stability is gained from the horizontally divided, two-piece construction. The?uninterrupted U-shape clamping area eliminates stress risers found on most other clamps, which can lead to handlebar failure.