Which tire seat type is most commonly used?

The tapered seat is the most commonly used tire seat type primarily due to its design, which provides a secure fit between the wheel and tire. The tapered shape allows the tire bead to seat more effectively when the tire is inflated, creating a tight seal that minimizes the risk of air leakage. This design also helps in aligning the tire onto the wheel during mounting, making the process easier and more efficient.

The taper angles can vary, providing flexibility for different types of wheels and tire beads, ensuring compatibility with a wide range of vehicles. Additionally, a tapered seat can reduce the likelihood of damage to the wheel during tire changes, which can be a critical factor in tire service operations.

The other types, while they may serve specific applications, do not offer the same balance of universality and effectiveness that the tapered seat provides in general tire servicing.