View Here : What Do The Numbers On Tires Mean Diagram
Rotating tires from front to back and from side to side can reduce irregular wear (for vehicles that have tires that are all the same size). Look in your owner's manual for information on how frequently the tires on your vehicle should be rotated and the best pattern for rotation. *For maximum mileage, rotate your tires every 5,000 miles.
Bolt patterns are expressed using two numbers, the first of which is obvious and represents the number of lugs there are, and the second, which tells you how far apart those lugs are from one another. All of a sudden, 4x114.3 means something and tells you that a wheel doesn't just have four lugs, but spaces them 114.3 mm apart from one another.