JOOD New 18° bicycle alloy stem durable mtb bike road bicycle city bike stemBrand:JOODMaterial:AluminumFinish:Black MatteWeight:133-142GStem Length(C-C):60mmStem Angle:-18DegreeScrew Torque:6N.mStem Diameter For Handlebar: 31.8mmStem Diameter For Fork: 28.6mm