Bolt pattern, lug pattern, PCD, or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can be 3, 4, 5, 6, 7, or 8 and either holes or studs. The bolt pattern consists of two numbers - the first number indicates how many bolt holes or studs are on the vehicle, the other number describes how far apart they are in either inches or millimeters. A bolt pattern of 4x100 indicates a 4 bolt pattern on a circle with a diameter of 100mm. If you need assistance Measuring your bolt pattern please view our Tech Tips page or click below on your lug pattern.
1. What do H, M and L under the "Offset" column mean?
"H" means High Positive Offset Typically +35 to +55, "M" means Medium Positive Offset Typically +15 to +25 and "L" means None or Low Positive Offset Typically 0 to +15. These tell you how far the mounting surface for your wheels is to the outside of the vehicles fender, "Low" being the furthest inside the fenderwell and "High" being closest to the outside of the fender. Typically front wheel drive cars are "High" and rear wheel drive are "Low". This info is very useful in correctly purchasing your next set of wheels, if overlooked and you went strictly by bolt pattern you could either end up buying wheels that stick out from the fender or are sunk to far into the fender. Either way causing you to look rediculous and possibly creating turning/steering problems.
