Samson Trailer Express HD. FEATURES AND BENEFITS: All season traction; Longer lasting tread life; Fuel efficient performance; . OVERVIEW: The Samson Trailer Express HD is a highway terrain, all season tire manufactured for trailers. This tire is NOT MEANT TO BE MOUNTED ON LIGHT TRUCKS, as its construction will not support the weight and performing style of such vehicles. It can ONLY BE MOUNTED ON TRAILERS.This model was created for true all season performance. The all season compound and the symmetric ribbed tread design provide the traction needed in dry, wet, and winter weather conditions. The footprint generates the needed number of biting edges, ensuring the model's consistent forward motion. Durable rubber materials keep the tire flexible in versatile temperatures, boosting its summer and winter weather applications. Circumferential grooves disperse water and slush from the footprint. This protects the tire from hydroplaning in wet weather situations.The lengthened usability is guaranteed thanks to the tread design and durable compound. The ribbed tread design's even pressure circulation avoids irregular wear, as driving pressure build-up is prevented. Additionally, the compound also decreases the treadwear rate thanks to optimal rubber flexibility. The sidewalls feature curb guards, which prevent sidewall damage. The combination of these improvements enables the tire's optimized service life.The Trailer Express HD boosts its fuel efficiency. Its better traction and optimized compound allow the tire to ease driving pressure off the tire, decreasing its rolling resistance. This is the pressure affecting the tire, which regulates the energy consumption of the towing vehicle. Lowering it allows the towing vehicle to decrease fuel usage and CO2 emissions. As a result, the tire guarantees an eco-friendly drive. This specific tire model features a BIASED ply construction. There might be discrepancies of sizes between brands and models of tires which have this size formatting. As the manufacturers only provide the tire width and the rim diameter with these tires, various brands and models will have size differences. In order to ensure the correct size is purchased, the overall tire diameter that is needed should be checked.The Overall Diameter or O.D. advertised represents the tire's overall diameter in inches, once the tire has been properly inflated and mounted per the manufacturer's recommendation. This advertised number is provided to Priority Tire by the tire manufacturer. Manufacturers recommend changing tires every 10 years. As long as tires are properly stored before they are sold, the year of their manufacture will not shorten their service life.