The Elite USA has a traditional handle grip, is more compact, and is made in our Minnesota factory in the United States. The Elite EXP has a contoured handle grip. They are not compatible with one another. Elite EXP and Elite USA handles, expansion kits, and bar accessories are not interchangeable between the Elite USA and Elite EXP models. If you purchased an Elite EXP model you must use Elite EXP accessories, if you purchased an Elite USA you must purchase Elite USA compatible accessories.