Ditto what Daryl said. The BMW grips (without heating elements) are about $9 and the Symtec/Dual star heating elements are about $30. They fit just fine. As for the grips with heating elements, I have no idea about fit. They might have less of a heat sink effect on the left grip than the Symtec elements. You can put some heat shrink tubing or tape under the Symtec elements to lessen this effect. Others can comment on this as I have mine right on the bar.