In a front fork apparatus of a two-wheeled vehicle or the like in which left and right front fork constituted by vehicle body side tubes and tire wheel side tubes which are slidably fitted to each other, are provided in both left and right sides of a front wheel, and a brake apparatus is attached only to the front fork in one side of the left and right sides, a thickness of the tire wheel side tube of the front fork in the one side to which the brake apparatus is attached, is made larger than a thickness of the tire wheel side tube of the front fork in the other side.