11.2-28 tractor tires

When sourcing 11.2-28 tires, you must prioritize the Ply Rating (PR), which typically ranges from 6PR to 12PR; a higher ply rating indicates a greater load-carrying capacity and better puncture resistance. Additionally, evaluate the Tread Pattern (R-1 vs. R-2): R-1 is the standard agricultural lug for general farming, while R-2 features deeper lugs for wet, muddy terrain or paddy fields. Ensure the rim width is compatible with the standard W10 or W9 rims to prevent bead seating issues.

To ensure safety and legal compliance, verify that the manufacturer holds ISO 9001 for quality management. For specific markets, look for DOT (Department of Transportation) marking for the US, E-mark (ECE) for Europe, and GCC/GSO for the Middle East. Furthermore, request PAHs (Polycyclic Aromatic Hydrocarbons) test reports to ensure the rubber compound meets environmental safety standards, especially for the EU market under REACH regulations.

The ratio of natural rubber to synthetic rubber is critical; a higher natural rubber content generally provides better tear resistance and flexibility, while specialized carbon black additives improve abrasion resistance. For high-sunlight regions, ensure the tires include anti-aging and anti-ozonant agents to prevent 'sidewall cracking' or dry rot, which can significantly shorten the tire's service life in outdoor storage.

While 11.2-28 is commonly produced as a Bias-ply tire due to its lower initial cost and stiffer sidewalls (ideal for side-hill stability), Radial tires offer a larger footprint, reduced soil compaction, and better fuel efficiency. B2B buyers should calculate the Total Cost of Ownership (TCO): if the tractor is used for high-hour road transport, the durability of a radial tire may offset its higher price point compared to the budget-friendly bias option.

The most significant risk is deformation during transit if tires are compressed too tightly to save space, which can damage the bead wire. Another risk is quality inconsistency between the approved sample and the bulk order. To mitigate this, use Made-in-China.com's Secured Trading services and mandate a Pre-Shipment Inspection (PSI) to verify weight, dimensions, and rubber hardness (Shore A) before the balance payment is made.

Tires are 'volumetric' cargo. To maximize container utilization, use the 'doubling' or 'tripling' method (nesting smaller tires inside larger ones) if you are sourcing multiple sizes. For 11.2-28 tires, confirm the loading quantity for a 40HC container (typically 180-220 pieces depending on packing). Always request FOB (Free On Board) terms to maintain control over your ocean freight costs and avoid hidden 'destination charges' often found in CIF terms.

Focus on the Net Weight of the tire; some suppliers reduce costs by thinning the tread or sidewall, resulting in a lighter, less durable product. Negotiate based on a guaranteed weight tolerance (e.g., +/- 2%). Additionally, ask for a Quality Warranty Policy—reputable exporters should provide a 2 to 3-year warranty against manufacturing defects, offering pro-rata discounts or replacements for premature failures.

Agricultural tires may be subject to Anti-Dumping (AD) or Countervailing Duties (CVD) in certain regions like the US or EU. Before finalizing a contract, check the HS Code (typically 4011.70) against your country's tariff schedule. Ensure the supplier provides a Certificate of Origin (CO) to take advantage of any Free Trade Agreements (FTAs) that could reduce or exempt you from basic import duties.