TruVativ Descendant Troy Lee Design Carbon 750mm Width 20mm Rise Starburst Orange/BLKTruVativ Descendant Troy Lee Design Carbon 750mm Width 20mm Rise Starburst Orange Black. Truvativ design built in collaboration with and featuring the creativity of Troy Lee Designs. The Truvativ CoLab TLD bar is the command center of cornering with an artistic flair. Stiff precise and wide Features the well known geometry and specs of the Descendant downhill handlebar with finishing design touches from Troy Lee TECH SPECS Bar Clamp Diameter (mm) 31.