Anxiety Disorder Due to Medical Condition. Some diseases and Illnesses cause anxiety, including symptoms that directly mimic anxiety disorders. For example, thyroid conditions can cause sudden and extreme anxiety. Lyme disease can also cause panic attacks and anxiety.
SL: Standard Load; tire for normal usage and loads; XL: eXtra Load; a tire that allows a higher inflation pressure than a Standard Load tire, which increases the tire's maximum load; RF: Reinforcedâfor Euro-metric tires, the term 'reinforced' means the same thing as 'Extra Load' RFT: Run-Flat Tire; Tires designed for vehicles without spare tires.
Tire inner tube with a straight valve stem. Commonly referred to as a TR13 valve stem. Inner tubes are donut-shaped rubber balloons that are inserted into the tire and inflated to retain air pressure. An inner tube is required when a tube-type tire is being employed. You can determine if you have a tube type tire by looking at the tire description on the sidewall.