What lug pattern is 5x100?
The 5x100 lug pattern is a five-lug wheel mounting arrangement with a 100 millimeter bolt circle diameter. In plain terms, wheels designed for 5x100 attach to a hub using five studs arranged in a circle that is 100 mm across; this is a key factor in wheel compatibility, distinct from wheel size or offset.
More detail: The 5x100 designation appears on wheel catalogs and vehicle fitment guides to indicate compatibility with hubs that have five mounting holes spaced around a 100 mm circle. It is commonly associated with certain Subaru models and a range of European compact cars from various years. When considering a wheel swap, you must also account for center bore size, offset, and brake clearance, since those factors can affect fit even if the bolt pattern matches.
What the 5x100 Pattern Represents
In wheel terminology, PCD stands for pitch circle diameter. For a 5x100 pattern, the PCD is 100 millimeters, and there are five lug holes. This combination determines which vehicles the wheels will bolt onto and how well they will align with the hub and brake components. The same pattern can be found across different brands and model years, so always verify the exact fitment for your specific car.
Key terms you should know
Bolt pattern (PCD): The number of lug holes and the circle diameter they define. Center bore: The hole in the middle of the wheel that fits over the hub. Offset (ET): How far the mounting surface of the wheel sits inward or outward from the hub. Brake clearance: The space available behind the wheel for calipers and brake components.
Common Applications and Examples
Before listing examples, note that fitment can vary by model year and trim. The 5x100 pattern is notably common among Subaru vehicles, and it also appears on some other makes and models depending on generations. Here are representative Subaru examples known to use 5x100 on various years:
- Subaru Impreza (including WRX variants) across multiple generations
- Subaru Legacy and Outback (select years)
- Subaru Forester (various years)
Because bolt patterns can change between model years and trims, always confirm 5x100 specifically for your exact vehicle and year using official specifications or a trusted wheel-fitment resource.
How to Verify Wheel Fitment
Use these steps to confirm that a wheel with a 5x100 bolt pattern will fit your vehicle, including important supporting checks beyond the bolt pattern itself.
- Verify the wheel's PCD is 5x100. Check the wheel’s specifications from the manufacturer or retailer to confirm five lug holes on a 100 mm circle.
- Measure the hub bore size on your vehicle and compare it to the wheel’s center bore. If the wheel’s bore is larger, you may need hub-centric rings for proper centering.
- Check the wheel offset (ET) and width. Ensure the offset and overall width won’t cause rubbing with suspension components, fenders, or brake calipers.
- Confirm brake clearance. Some wheels with a 5x100 pattern may not clear larger brake calipers or rotor configurations; verify clearance with the specific brake setup on your car.
- When in doubt, consult the vehicle manufacturer, a wheel specialist, or a qualified shop to verify compatibility for your exact year, trim, and options.
Even with a matching 5x100 bolt pattern, improper offset, hub mismatch, or brake clearance issues can cause vibration or rubbing. Always verify all fitment specs before mounting wheels.
Summary
The 5x100 lug pattern denotes a five-lug mounting arrangement with a 100 mm bolt circle diameter. It is a valid and relatively common pattern for certain Subaru models and other vehicles across various years, but fitment depends on center bore, offset, and brake clearance in addition to the bolt pattern. Always double-check model-year specifics and consult fitment guides or professionals when in doubt.
