This stem has a very unusual design that allows handlebars to be loaded from the front. When the clamp nut is removed the bottom of the clamp is loosened, and the wedge is the middle slides out. It is a 26mm clamp diameter. 100mm reach. 22.2mm insertion. Used with some marks from use. I have not used this stem. I have no idea if it is considered a safe design. Please research this model to make sure it is safe and installed correctly before taking it for a ride.
