A vehicle tire which provides a simple means of mounting, dismounting, or exchanging tire treads. The tire carcass is designed in such a manner that the diameter increases by 15 percent or more when the tire is inflated to operating or operable pressure. On the carcass, in place of the conventional integral tread there is a wide annular groove or channel having spaced sidewalls. The tread comprises an annular nonstretchable flexible band or belt which snugly fits in the channel between the sidewalls. When the tire is inflated and expands radially outwardly, the nonexpandable tread is securely and firmly held in place in the channel, but it can be removed and replaced when the tire is deflated. The interengaging inner annular surface of the tread member or band and the outer surface or bottom of the tread receiving channel may be formed with complemental, interengaging means or lugs which are forced into interengagement with each other when the annular tread band is fitted into the channel and the tire is inflated to resist relative slippage between the tire and the annular belt tread member.