Mountain Bike Australia (MTBA) is the peak body responsible for the governance, promotion and advocacy of mountain biking in Australia. It covers an array of disciplines including cross country (XCO), downhill (DHI), observed trials (OT), cross country marathon (XCM), cyclocross (CX). There are currently over 14,000 members, 175 affiliated clubs and private promoters, 207 coaches and 200 officials supporting the activity of mountain biking in Australia. MTBA implements the unitary governance model.