The MICHELIN® X® TWEEL® Turf Caster Wheel is the next “revolution” in commercial mowing. The MICHELIN X TWEEL Turf Caster Wheel has all the qualities you would want in a pneumatic tire but it never needs air. No more flats, downtime, patch kits or replacement tires. And in the area of wear and tear, this “tire” has a wear life that is three times that of a pneumatic.