The number of tires on a truck can vary depending on the type and size of the truck. Here are some common examples:
1. **Standard Pickup Truck**: A standard pickup truck typically has four tires, with two on the front axle and two on the rear axle.
2. **Commercial Delivery Truck**: Smaller commercial delivery trucks, such as box trucks or vans, usually have six tires, with two on the front axle and four on the rear axle.
3. **Semi-Truck (18-Wheeler)**: A semi-truck, also known as an 18-wheeler or tractor-trailer, typically has 18 tires. These trucks have four tires on the front axle, and the rear part consists of dual wheels (eight tires) on each of the two rear axles, totaling 16 tires on the rear.
4. **Heavy-Duty Trucks**: Some heavy-duty trucks used in specialized applications, such as construction or mining, may have even more tires, including multiple axles with dual wheels.
It's important to note that there can be variations within each category of trucks, and the number of tires may also depend on local regulations, load-bearing capacity, and specific configurations chosen by the truck owner or operator.