FSA Energy Mountain/Road Stems are constructed of forged and CNC-machined 7050/T6 aluminum with a 4-bolt sculpted faceplate. FSA Energy Mountain/Road Stems are constructed of forged and CNC-machined 7050/T6 aluminum with a 4-bolt sculpted faceplate. 3D Forged and CNC machined from AL2014 4 bolt sculpted SL faceplate Titanium hardware 40mm clamp stack height