ProTaper ATAC Stem - 50mm 31.8mm clamp Black/White CheckoutSpec= Bluestone Patented low-profile tubeless rim design

Patented low-profile tubeless rim design balances lateral stiffness with radial compliance

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Color White Volume 32

0mm Blanks 315mm J-bend Silver Box of 500

ProTaper ATAC Stem - 50mm 31.8mm clamp Black/White CheckoutSpec= Bluestone Patented low-profile tubeless rim designProTaper ATAC Stem 50mm 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 50 Material Aluminum S. H. I. S. Stem Clamp Diameter 28. 6