These are well made, but have a �vest� in them that makes the unit a little wider that normal. ENVE wheels must have a slightly larger diameter valve hole than other wheels. I had to use my extenders on a not so deep wheel that allowed the tub valve to slightly stick through
A valve extender is a valve extender. These ENVE extenders have perform well and I have not had a problem with the occasional leak that I have experienced with other extenders. They have yet to loosen or come unscrewed.
