ProTaper ATAC Stem - 50mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White 5 speed or compatible with the GuideRail

or compatible with the GuideRail Add-On

Front and Rear application Flat Protection Tread and Sidewall TPI 120 Color Black/Brown Weight 515 Defined Color Black ISO Width (mm) 40 ISO Diameter 622 / Road / 29" Tire Intended Use Cyclocross Tire Diameter 700c Tire Bead Folding Labeled Size 700 x 40 Tire Type Tubeless Ready Clincher PSI 50 Size 700 X 40 Tpi 120 Gct Yes

If mounting directly to frame bottle cage mounts

fine-tooth mechanism – 80 teeth in all – enables flexibility even in very confined working spaces

8 Bar Top Style Round Bar Reach (mm) 80 Color Black Bar Drop (mm) 125 Weight 276 Accessory Mount Diameter 31

ProTaper ATAC Stem - 50mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White 5 speed or compatible with the GuideRailThe 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 Bar Clamp Diameter (mm) 31. 8 Color Black White Defined Color Black Length 50 Material Aluminum S. H. I. S. Stem Clamp Diameter 28. 6 Stem Angle (deg) 5 Edition Standard