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About Rims :: Articles about Tire industry. Professional Tire Tests and Special Reports Learn about types of tires, size, speed rating, tread wear, and other factors to consider when replacing or upgrading your car's tires.

Centre Bore

Centre Bore
Bolt Pattern/Pitch Circle Diameter (PCD)

Bolt Pattern/Pitch Circle Diameter (PCD)

PCD (Pitch Circle Diameter) is the measurement of the diameter of the imaginary circle drawn through all of the wheel bolts or studs on a w…
Fun facts (trivia) about tires, rims and wheels!

Fun facts (trivia) about tires, rims and wheels!

Here's a list of some random fun facts (trivia) about tires, rims and wheels, which you probably didn't know of before. Have fun with these, maybe it…

How to Identify the correct lug nut and wheel lock for your vehicle