Velo Orange Quill Stem - 31.8mm Clamp 22.2-24tpi Quill 80mm ChromeVelo Orange Quill Stem 31. 8mm Clamp 22. 2 24tpi Quill 80mm Chrome. Velo Orange Removable Faceplate Quill Stem. For any classic roadie tourer mtb or any other bike with a 1" threaded steerer. These stems feature a simple 2 bolt removable faceplate for use with any handlebars including modern bars with 31. 8mm clamp diameters. The 90 degree extension gives a bit of rise without looking out of place on a custom build. Height above insert: 130mm Use