The 3T Arx Team stem for mountain is a precision piece optimized for lightweight strength. Made from aligned-grain 7050 aluminum, this stem weighs in at 125 grams in the 110 mm size. The handlebar clamp features 4 titanium bolts that tighten a sharp, precision-designed clamp onto a 31.8 mm handlebar. Notice that 3T has removed removed unnecessary material from both faceplate and steerer tube. For styling, the black matte finish is complimented by a bold red striping along the stem length. This stem is available in lengths ranging from 70mm to 140mm. To install correctly, it's best to have a toque wrench and allen bit, tightening each bolt back and forth in a cross pattern. Check manufacturer packaging for torque specs.