ProTaper ATAC Stem - 70mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White Tip Size-8mm the drive side cup is

the drive side cup is left-hand thread and the non-drive side cup is right-hand thread

}Ritchey WCS Carbon Solostreem Drop Handlebar - Carbon Integrated 44cm Matte Carbon 120mm

Full complement bearing with 40% greater load capacity than standard cage separated cartridge bearings

2 version controls and electronics

ProTaper ATAC Stem - 70mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White Tip Size-8mm the drive side cup isProTaper ATAC Stem 70mm 31. 8mm clamp Black White. The ATAC is back. One of the oldest names in the high end stem game has returned. And this time its all blinged out with titanium hardware and a fresh laser etched finish. Aluminum construction with Titanium Hardware Rise: + 5 degrees Clamp Diameter: 31. 8mm TECH SPECS Bar Clamp Diameter (mm) 31. 8 Color Black White Defined Color Black Length 70 Material Aluminum S. H. I. S. Stem Clamp Diameter 28. 6