The Truvativ Stylo World Cup stem is fabricated with 3D-forged, 7050 aluminum for superior strength at a very light weight. The 4-bolt faceplate incorporates super light, 6/4 titanium bolts to secure the bar, distributing pressure evenly across the handlebar's clamping surface. 6/4 titanium bolts are also used to secure the steerer tube. 31.8" bar diameter. 75-135mm. 130 g. Black or white.