STEM AN TORCH 1-1/8 58mm 31.8 BKFully CNC machined front loading stem designed to perfectly mate with the Olympic handle bars. Available in multiple lengths and colors. Machined from 6061-T6 alloy. Item Specifications: Material, AL6061-T6, Type, BMX, Angle, 0°, Finish, 30, Bar Clamp, 31.8, Fork Dia, 1-1/8`, Steerer, 0,.