AR-PRO 2.80/2.50-4 Inner Tubes (4 Pack) — TR87 Bent Valve, Heavy-Duty for 4" Rims

These heavy-duty inner tubes are made to fit 4" rims and accommodate common small equipment tires found on utility carts, dollies, and select scooters. Each tube includes a TR87 bent (angled) valve stem for easier access when a wheel is mounted. The set of four provides spares or multiple replacements so you can get several wheels back in service without repeated ordering. Built from puncture-resistant rubber compound, the tubes balance durability with a straightforward, tool-free installation process.

What sizes and equipment do these tubes fit?

The tubes are sized 2.80/2.50-4 which corresponds to many 8.5" outside-diameter tires used on 4" rims. They work with a wide range of small vehicles and equipment so you can replace worn tubes without changing rims or tires. Check your tire sidewall or rim size to confirm compatibility before purchase.

• Fits tires listed as 2.80-4 or 2.50-4 (8.5" OD)
• Compatible with 4" wheel rims used on hand trucks and carts
• Common fits: utility carts, wheelbarrows, lawn mowers, dollies, select scooters

How does the TR87 bent valve stem help during maintenance?

The TR87 bent valve stem is angled so it’s easier to reach when the wheel is mounted, especially on tight or recessed hubs. That angled valve reduces the need to remove wheels for inflation and makes patching or pressure checks faster. It’s particularly useful for tightly spaced axle assemblies and for users with limited room to maneuver.

• Angled valve eases access for pumps and gauges
• Reduces wheel removal for inflation or pressure checks
• Simplifies routine maintenance on compact equipment

How durable and safe are these replacement tubes?

AR-PRO manufactures these tubes from a reinforced rubber compound intended to resist common punctures and wear from regular outdoor use. While no tube is puncture-proof, the material formulation and ring construction aim to retain air and form a temporary seal on minor punctures. The design focuses on dependable service life in typical garden, workshop, and transport applications.

• Heavy-duty rubber compound for improved wear resistance
• Built to hold air reliably in varied weather conditions
• Intended to limit rapid deflation from small punctures

How easy is installation and what tools are required?

Installation is straightforward and can usually be completed in under five minutes for experienced users. Standard tire levers and an air pump are all that’s needed; no specialized tools or adapters are required when working with matching rims. The TR87 valve stem accepts common pumps and gauges, so refitting a wheel is fast and convenient.

• Typical tools: tire levers and a standard pump with a Schrader-compatible head
• Most installations take only a few minutes once the wheel is removed
• Set includes four tubes for multiple wheel replacements or spares

Who is this for: These AR-PRO inner tubes are intended for homeowners, landscapers, small-business operators, and hobbyists who service hand trucks, wheelbarrows, utility carts, lawn equipment, and compatible scooters. Buy a 4-pack when you maintain several wheels at once or want backup tubes on hand to minimize downtime. Confirm rim and tire markings before ordering to ensure the 2.80/2.50-4 tube and TR87 valve stem match your application.