Bias tires for commercial vehicles are a traditional yet reliable choice, particularly favored in heavy-duty, agricultural, and off-road applications where strength and toughness are prioritized over fuel efficiency. Unlike radial tires, bias tires feature multiple rubber plies crisscrossing diagonally at 30–40° angles, giving them exceptionally strong sidewalls that resist cuts, punctures, and damage from rough terrains. They are widely used on trucks, buses, tractors, and trailers operating in demanding conditions such as construction sites, farms, and uneven roads. With load capacities ranging from 1,500 to 4,000 kg per tire and ply ratings between 10 and 24 PR, bias tires can carry heavy loads at moderate speeds, usually within 80–100 km/h. Their tall sidewalls and heavy lug tread designs ensure excellent traction on mud, gravel, and rocky surfaces, making them dependable for low-speed heavy hauling. While they have higher rolling resistance and lower fuel efficiency compared to radials, their affordability and ability to withstand extreme loads make them a cost-effective solution for short-haul and off-road applications. Bias tires typically offer 50,000–100,000 km of mileage and limited retread potential, but their rugged durability ensures they perform well in conditions where radial tires may wear out prematurely. For operators prioritizing toughness and low upfront costs, bias tires remain a solid and dependable option.