Saturn Sky Wheel Lug Patterns, Offset, and Center Bore Reference
The Saturn Sky features specific wheel lug patterns and fitment specifications essential for selecting compatible wheels and tires. This guide provides the lug count × PCD (pitch circle diameter in millimeters), offset ET, and center bore dimensions sorted by production year to ensure proper wheel mounting and performance.\n\nTypically, Saturn Sky models use a five-lug pattern with a 4x100mm or 5x110mm PCD depending on the year. Understanding the correct lug pattern along with the wheel offset (ET) and center bore size is critical to maintain proper clearance, alignment, and safety.\n\nWheel rim sizes will vary between model years, but using this reference will help identify the correct Saturn Sky bolt pattern and wheel fitment for aftermarket or replacement wheels. Ensure to verify compatibility independently and avoid fitment issues by consulting the detailed Saturn wheel lug pattern catalog available.\n\nThis resource consolidates key specifications for Saturn Sky wheel mounting, helping enthusiasts and professionals make informed decisions for upgrades or maintenance.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Saturn Sky 2.0i | 2007 | 245/45R18 | 8 | 18 | 5×110 | 45 | 65.1 | M12*1,5 |
| Saturn Sky 2.4i | 2007 | 245/45R18 | 8 | 18 | 5×110 | 45 | 65.1 | M12*1,5 |
FAQ
- What is the common lug pattern size for the Saturn Sky?
- The Saturn Sky typically uses a 5-lug pattern with either 4x100mm or 5x110mm PCD depending on the model year.
- Why is wheel offset (ET) important for the Saturn Sky?
- Correct wheel offset (ET) ensures proper wheel clearance, alignment, and suspension geometry, preventing rubbing or handling issues.
- How does center bore size affect Saturn Sky wheel fitment?
- The center bore must match the wheel hub diameter to ensure the wheel centers correctly on the hub, reducing vibrations and securing proper fitment.
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 |
