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IMPORTANT: Verify Axle Length Before Purchase – This tire requires sufficient exposed axle length to accommodate the 3-3/4" centered hub PLUS space for washers and retaining hardware (R-clip or cotter pin). Not universally compatible with all wagons or hand trucks.
Flat-Free Solid Polyurethane Tire – High-quality polyurethane eliminates flats, punctures, and air loss for zero-maintenance performance in demanding environments.
12" Diameter | 3-3/4" Centered Hub – Measures 12" x 3-1/4" with a 3-3/4" centered hub. Designed for equipment requiring this exact hub configuration.
1" Bore | Fits 25mm Shaft – Engineered for 1" axles and 25mm shafts; includes standard bearings for smooth rotation and reliable performance.
Pre-Mounted on Heavy-Duty Steel Rim – Arrives fully assembled on a durable steel wheel for fast replacement, added strength, and long service life.
330 lb Load Capacity | Utility Use – Supports up to 330 lbs (150 kg). Suitable for compatible trailer dollies and utility equipment. Not for highway use.

The MaxxHaul 12" Flat-Free Solid Polyurethane Replacement Tire (50502) is engineered for long-lasting, maintenance-free performance in trailer dolly and utility applications. Built from solid polyurethane, this tire eliminates flats, punctures, and air pressure issues—making it a reliable upgrade for equipment used on rough or uneven terrain. With a 12" diameter, 1" bore, and centered 3-3/4" hub, the 50502 fits standard 25mm shafts and installs easily thanks to its pre-mounted heavy-duty steel rim. The tire supports up to 330 lbs, offering smooth, stable rotation with its integrated bearings. Whether you're replacing a worn dolly wheel or upgrading a garden cart, warehouse cart, or mobile platform, this flat-free tire delivers dependable traction and durability without the hassle of air-filled tires. Designed for utility and off-pavement use, the MaxxHaul 50502 provides rugged performance for homeowners, contractors, and equipment operators who need a reliable, all-terrain replacement wheel.