Trust Grainger for rugged pneumatic and solid rubber wheels for wheelbarrows, lawn mowers, wagons, carts and other wheeled equipment requiring wheels 6" to 16" in dia. Solid rubber wheels and semi-pneumatic wheels don’t require air so they can't go flat. Pneumatic wheels are filled with air and offer your choice of knobby, sawtooth and ribbed treads in a wide range of sizes. Use solid rubber wheels to help move heavier loads. Choose pneumatic and solid rubber wheels from a wide range of sizes and load capacities. Shop Grainger today!