This is a 10X3.50-4 slick tread (racing) tubeless tire, most commonly (though not exclusively) used for a variety of pocket bikes (also called 'pocket motorcycles', 'mini motorcycles', 'mini bikes' and 'mini racers'). This type of tire is additionally a common on-road tread style for mini ATVs (also called 'pocket quads', 'mini quds' and 'mini bikes') normally of the 2-stroke 37cc, 39cc, 47cc or 49cc displacements. Can also be found on a wide variety of other powersport, mobility or 'lawn & garden' applications.