Saturn Ion Wheel Lug Patterns, Offset ET & Center Bore Reference
The Saturn Ion uses specific wheel lug patterns defined by the number of lugs and the pitch circle diameter (PCD) in millimeters. This critical lug pattern information ensures proper mounting and compatibility of aftermarket and replacement wheels.\n\nAlong with the lug pattern, correct wheel offset (ET) values and center bore dimensions are essential to maintain safe fitment and proper alignment on Saturn Ion vehicles. Offset values typically range around ET35 to ET45 depending on the model year and trim.\n\nRim sizes for the Saturn Ion vary by production year, affecting tire and wheel compatibility. Knowing the exact lug pattern, offset, and center bore allows owners and professionals to select wheels that match original specifications or acceptable alternatives without compromising performance or safety.\n\nOur Saturn Ion lug pattern catalog is organized by model year, offering a quick, reliable reference to verify wheel fitment specifications before purchase or installation.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Saturn Ion 2.0i | 2007 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.2i | 2007 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.4i | 2007 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.0i | 2006 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.2i | 2006 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.4i | 2006 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.0i | 2005 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.2i | 2005 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.4i | 2005 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.0i | 2004 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.2i | 2004 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.4i | 2004 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.0i | 2003 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.2i | 2003 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
| Saturn Ion 2.4i | 2003 | 185/70R14 | 5.5 | 14 | 4×100 | 43 | 57.1 | M12*1,5 |
FAQ
- What is the Saturn Ion wheel lug pattern size?
- The Saturn Ion typically features a 5-lug pattern with a 110mm pitch circle diameter (PCD).
- Why is the offset (ET) important for Saturn Ion wheels?
- Offset affects wheel positioning relative to the suspension. Using the correct ET ensures proper clearance, handling, and prevents premature wear.
- Where can I find Saturn Ion center bore measurements?
- Center bore dimensions for Saturn Ion wheels are usually around 64.1mm, but should be confirmed for specific model years to ensure proper hub fit.
Tire size calculatorShow
Compare two tire sizes — diameter, speedometer error, and clearance change.
| Size 1 | Size 2 | Diff | Diff(%) | |
|---|---|---|---|---|
| Diameter | 25.0" | 25.4" | 0.5" | 1.89% |
| Width | 7.7" | 8.5" | 0.8" | 10.26% |
| Circumference | 78.4" | 79.9" | 1.5" | 1.86% |
| Profile height | 5.0" | 4.2" | -0.7" | -15.08% |
| Turnover per mile | 807 | 793 | 14 | -1.73% |
| Clearance | - | - | +0.2" | - |
Speedometer Error
(First wheel OEM size)
| Reading | 20 mph | 30 mph | 40 mph | 50 mph | 60 mph | 70 mph | 80 mph | 90 mph |
|---|---|---|---|---|---|---|---|---|
| Actual | 20.4 | 30.5 | 40.7 | 50.9 | 61.1 | 71.2 | 81.4 | 91.6 |