MAXXHAUL 12" Flat-Free Solid Tire Wheel 4.10/3.50-6 — 1" Bore with 5/8" Adapters, 330 lb Capacity

The MaxxHaul 12" flat-free solid tire wheel (4.10/3.50-6) with a 1" bore and included 5/8" adapters is a maintenance-free replacement wheel built for utility gear with a 330 lb capacity.

If you need a reliable one-wheel solution for a trailer dolly, center-hub wheelbarrow, or other utility equipment where axle size is uncertain, this MaxxHaul wheel removes guesswork by supplying two reducer bushings so it fits either a 1" axle or a 5/8" axle. The tire is a bonded polyurethane solid — no air, no flats — mounted on a heavy-duty steel rim with double-sealed bearings for smooth rotation and extended service life.

How does this wheel simplify axle compatibility?

This wheel ships with two 1" to 5/8" bushings so you can use the same replacement on equipment with either axle standard. That makes it a convenient spare or a single SKU solution when repairing mixed fleets of dollies and carts.

• Includes two reducer bushings to fit 5/8" axles from the factory 1" bore.
• Check that your axle has enough exposed length for the 3.75" center hub plus washers and retaining hardware.
• Direct fit for 1" axles without bushings; press in bushings for 5/8" fitment.

What surfaces and loads can this wheel handle?

The solid polyurethane tire resists cuts, UV damage, and weathering, making it useful across driveways, gravel strips, shop floors, and yard terrain where pneumatic tires might puncture or degrade. The wheel’s 330 lb rating covers most single-wheel loads on dollies and wheelbarrows used in landscaping, light hauling, and maintenance tasks.

• 12" outer diameter with a 4.10/3.50-6 profile suited for dollies and center-hub wheelbarrows.
• Rated 330 lb per wheel for typical utility applications (verify combined load distribution before use).
• Bonded PU tire resists cracking and rotting better than rubber in outdoor exposure.

How durable and easy to install is the wheel?

Pre-mounted on a heavy-gauge steel rim, the tire is bonded to prevent separation and the hub uses double-sealed bearings to reduce maintenance. Installation is straightforward: remove the old wheel, match bore or use the supplied bushings, and secure with your existing washers and retaining clip or cotter pin.

• Solid PU construction: no inflation, no patching, no slow leaks.
• Double-sealed bearings for smoother spin and longer bearing life in light-duty settings.
• 3.75" center hub length provides secure seating on typical dolly and wheelbarrow axles; confirm axle clearance first.

Will this wheel fit my equipment models and what should I confirm before buying?

This wheel is explicitly compatible with MaxxHaul dollies 70225, 70881, and 51226 and fits many center-hub wheelbarrows that accept a 4.10/3.50-6 tire and 1" bore (or 5/8" with supplied bushings). It is not a universal wheel — verify axle diameter and enough exposed axle length for the 3.75" hub plus retainers.

• Primary replacement for MaxxHaul models 70225, 70881, 51226.
• Confirm your axle is 1" or 5/8" and that there is adequate exposed length for hub plus hardware.
• Intended for utility use only, not for highway or high-speed applications.

Who is this for: The MaxxHaul 12" flat-free solid tire wheel is ideal for homeowners, landscapers, facility maintenance teams, and small contractors who want a durable, low-maintenance replacement wheel for dollies, wheelbarrows, and other light utility equipment. Choose this wheel when you need a weather-resistant, puncture-proof option that accommodates either a 1" axle or a 5/8" axle (with included bushings), and be sure to measure axle exposure and load requirements before installation.