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 clampItem SpecificationsColorIron/ Blue Intended UseMountainBar Clamp Diameter31.8mmStem Angle96degStem Length80mmSteerer Tube1-1/8" Threadless