ENVE Composites M6 Stem. 50mm / 31.8 / Carbon. NEW – In OEM packaging. The stem is brand new and has never been mounted on a bicycle. It is part of a bulk order (OEM) from ENVE so there is no retail box. This is a genuine ENVE stem. This sale is for the stem only. There is no retail box. This is a nice opportunity to get a brand new, top of the line ENVE stem at a discount. 31.8mm handlebar clamp. 1 1/8 steertube diameter.