Kumho Spare T121 T135/90D17 104M 5005273

Kumho Spare T121. FEATURES AND BENEFITS: Spare tire; Temporary mobility; Smaller physical shape; . OVERVIEW: The Kumho Spare T121 is a spare all season tire manufactured for passenger vehicles and SUVs.These tires were developed to be used only temporarily. In case of an accident, blowout, road hazards or any other damage to the original tire, this spare model can be mounted on the vehicle. It offers limited mobility to the vehicle, up to the speed of 50 mph. They are not designed to be used for longer periods of time.The model has a smaller physical size and shape than the original tires on the vehicle. They also feature shallow tread that is less effective against the weather conditions. To properly function the tire needs 60 psi cold tire inflation. In this manner, it is capable of withstanding the weight of the vehicle.The Spare T121 was designed to be smaller than regular spare tires. This lowers the overall weight of the vehicle and enhances the trunk spare.This is a bias ply or diagonal tire. Due to the tire's internal construction and size, it is possible that the tire will look deformed. Smaller diagonal tires do not have reinforced constructions that can keep the tire from deforming. The bias construction and the small tire's non-reinforced internal structure allow the tire to fold in when it is deflated or not properly inflated. This is not constructional damage or an issue; it is a normal occurrence with such tires. In such cases, the tire needs to be mounted and inflated to the proper PSI or, in some instances, an inner tube needs to be added. The proper PSI and the inner tube are able to maintain the tire's ideal shape, preventing the bias plies from looking deformed. This ensures their performing safety and durability.The photo is a representation of the tire's possible deformation, it does not represent the specific tire model, size, tread pattern and application.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.