CARE AND UPKEEP:
When cleaning and polishing chrome wheels, the rims should first be cleaned and rinsed before using a metal polish. Apply metal polish a little bit at a time with help from a professional car detailing specialist in this free video on auto detailing and cleaning.
BOLT PATTERN AND HOW TO MEASURE:
Bolt patterns are fairly simple concepts. Your first number in the bolt pattern will always be the number of studs on the vehicle. for example, the first image in the picture above is a 4 lug. Your second number, will be the spread as measured above. This number can me either metric or standard. For the first image, if the spread or distance between the two were 100mm, then our bolt pattern on that vehicle would be stated as 4x100. The same process carries to all vehicles.
WHEEL OFFSET AND BACKSPACING:
The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up. Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub mounting pad of the wheel. This measurement is backspace. The above photo shows three wheels with 2",3", & 4" backspace.
PROPER TIRE WEAR:
Your tires can tell you a lot about the issues with your vehicle. The most common patterns of wear are illustrated above. Be sure to check the air pressure in your tires once per month during normal maintenance, and you can avoid a costly mistake that could have been easily fixed.