Profile Design Aris Stems. Available for 26.0 & 31.83D forged 6061-T6 AluminumItem SpecificationsColorBlackIntended UseRoadBar Clamp Diameter26.0mmStem Angle65,115degStem Length80mmSteerer Tube1-1/8" ThreadlessDefined ColorBlackS.H.I.S. Clamp Diameter28.6