What is the bolt pattern on a geo metro?
The bolt pattern on a Geo Metro is 4x100, meaning four lug holes arranged on a 100-millimeter circle.
Understanding the Geo Metro's bolt pattern
The Geo Metro, built by GM under the Geo brand and sold from the late 1980s through 1997, uses a four-lug setup on a 100-mm bolt circle. This pattern is common among many compact cars of the era, which means wheels from other 4x100 vehicles can be potential fits. When considering wheel swaps, it's important to verify not only the lug pattern but also the center bore size and wheel offset to ensure proper hub alignment and adequate clearance for brakes and suspension components.
Practical compatibility and caveats
Even with the same 4x100 bolt pattern, wheels can differ in center bore and offset. A larger center bore than the hub requires a centering ring to avoid vibrations, while an improper offset can cause rubbing or altered handling. Always check the exact center bore, offset, and lug nut specifications for any wheels you plan to use on a Geo Metro to ensure a safe, precise fit.
Year range and cross-compatibility
Across its production span, the Geo Metro maintained the 4x100 bolt pattern, providing some cross-compatibility with other 4x100 cars—from certain GM small cars to select Suzuki and Honda models of the era. However, compatibility is not universal; brake rotor diameter, caliper clearance, and hub geometry vary by model year and trim. Verify each wheel's fitment specs for your specific Metro configuration before swapping.
Summary
In short, a Geo Metro uses a 4x100 bolt pattern—four lug holes on a 100-mm circle. When upgrading wheels, confirm center bore, offset, and brake clearance in addition to the bolt pattern to ensure a safe, reliable fit. With careful verification, options from other 4x100 vehicles can be considered to restore or customize a Geo Metro.
