AboutBrett Harrell Expertise I can answer questions about tire brand applications without Brand bias or company loyalties. Any bias that I may have is based on practical and real world experiences. I will answer questions about tire sizes, wear, speed ratings, load indexes as well as most other questions about passenger, light truck, tractor along with RV/trailer & medium truck tires. Please include the type of drivetrain for vehicles: 2WD, 4WD, AWD and if the vehicle is lifted or lowered. If you have a tractor question please indicate if it's 2WD, Front Assist or 4WD.
Experience 1) 2 years as a lead tire builder and 7 years in quality assurance diagnosing failures at the plant level and in the field. This work was performed for a major tire manufacturer. 2) 18 years in sales to the end user of ALL types and brands of tires.
Answer In lay man's terms when a tubeless tire is constructed an Inner Liner is incorporated in the inside of the tire, in essence a tube built into the tire. The bead flanges are designed to conform to the flange of the rim thus creating an airtight seal.