Crank Brothers StemsCobalt is intended for cross country racing and ridingCobalt 3 stems have a simple and light torx bolt design that uses a wedge/plunger system for steerer tube and handlebar clampCobalt 3 stems have a simple no faceplate design and a single bolt steerer tube clamp; 3 total boltsHeight=46mmItem SpecificationsColorIron/ BlackIntended UseMountainBar Clamp Diameter31.8mmStem Angle96degStem Length80mmSteerer Tube1-1/8" ThreadlessDefined ColorSilverS.H.I.S. Clamp Diameter28.6