Mo. Rev. Stat. § 407.1028

Any person who is engaged or engages directly or indirectly in purposeful contacts within the state of Missouri in connection with the offering, advertising, purchasing, selling, or contracting to purchase or to sell new motorcycles or all-terrain vehicles, or who, being a motorcycle or all-terrain vehicle franchisor, is transacting or transacts any business with a motorcycle or all-terrain vehicle franchisee who maintains a place of business within the state and with whom the person has a franchise, shall be subject to the jurisdiction of the courts of the state of Missouri, upon service of process in accordance with the provisions of section 506.510, irrespective of whether such person is a manufacturer, importer, distributor or dealer in new motorcycles or all-terrain vehicles.