Bontrager Comp & Legacy Elite Stem Blendr BaseBlendr add-on to Comp & Legacy Elite stemsClean up your Bontrager Comp stem cockpit with the Blendr Comp Base.Blendr works with this simple formula: Stem + Base + Mount. Add accessory.Product detailsBlendr works with this simple formula: Stem + Base + Mount. Add accessory.Bases for use with the Comp and Legacy Elite StemAdd any accessory mount (sold separately) for an elegant, integrated look