Dimension Mountain Stem is a fully forged 6061-T6 aluminum stem with 4-bolt handlebar clamp.Dimension stems are not intended for use with carbon handlebars or carbon steerer tubes2-D forged AL-6061-T6Four-bolt handlebar clamp41mm heightItem SpecificationsColorBlackWeight160gIntended UseMountainBar Clamp Diameter25.4mmStem Angle107degStem Length100mmSteerer Tube1-1/8" ThreadlessDefined ColorBlackS.H.I.S. Clamp Diameter28.6