Short answer is no. The concept first came in higher end wheels, and the main reason it's not done more commonly is that it means the manufacturer has to have a double inventory of rims. If the rear and front are the same, then they save by not having to keep track of two different rims. Also it means that the manufacturer needs to have two different extrusion dies, another cost.Fenrisulfur said:Is this mainly done on cheaper wheels? I don't see this on my mtb wheels or other racing wheels?