ProTaper ATAC Stem - 50mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White MFPN=00.4020.559.000 Adjustable cycling-specific fit: Pre-shaped knees

Adjustable cycling-specific fit: Pre-shaped knees and hip allow for comfortable use in any cycling position while adjustable calf tapering avoids fabric getting caught in your drivetrain

Safe and simple spring loaded fixed position arms do not contact the frame or fork

Pump Length 514-580mm Valve Presta Schrader Dunlop Primary Color Black Pump Head Dual Valve Head

}Park Tool BTS-1 English Bottom Bracket Taps Facer and Handle Set

ProTaper ATAC Stem - 50mm 31.8mm Clamp +/-5 1 1/8" Aluminum Black/White MFPN=00.4020.559.000 Adjustable cycling-specific fit: Pre-shaped kneesProTaper 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