Attention! Due to the size of the tires Packages might be SEPARATED in the courier facility and not be DELIVERED on the SAME DAY even though we do ship them together. Tracking information can be checked by logging on to the courier website with the master tracking number you will receive via email. For example you can receive 3 tires in one day and the 4th one the next day or the day after or one tire in one day and the second one day after. We understand that this is a big inconvenience for our buyers however this is ABSOLUTELY out of our control. Goodyear Wrangler SR-A FEATURES AND BENEFITS All weather traction Hydroplaning resistance Enhanced cornering ability Driving stability OVERVIEW The Goodyear Wrangler SR-A is a highway terrain all season tire manufactured for SUVs and trucks. Goodyear offers a 50 000 mile treadwear warranty with this tire model except light truck sizes. This tire has remarkable all weather traction which grips the road well even in lower temperatures and light winter weather. The tire s zigzag grooves grip the road firmly while the special tire compound offers added traction and biting edges for wet road surfaces. The circumferential grooves in the tread pattern help eliminate water from below the footprint actively resisting hydroplaning. Using the tire all year becomes safer this way. The tire s tread lock sipes in other words the TredLock microgrooves provide additional biting edges. The extra biting edges enhance the wet traction of the model and improve the cornering ability and power. The boosted cornering ability allows for more confident maneuvering with this model. The Wrangler SR-A s internal structure offers extra stability for high speed driving. This prevents the driving pressure from deforming the tire and it maintains its shape at all speeds. Some sizes of this model have reinforced sidewalls which are capable of handling heavy loads. Those are the load range D and E models which are meant to be used on light trucks. This specific tire is marked with NR1 as it is the original equipment of Nisan vehicles. 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.