Alfa Romeo Spider 2.2 JTS 185hp Q2 Convertible 939 (2006-2011) Wheel Offset Calculator | Fitment Stance
Compare wheel and tire dimensions for the Alfa Romeo Spider 2.2 JTS 185hp Q2 Convertible (939 (2006-2011)) against the recorded OEM baseline: 7.5x18 ET38, 225/45R18, 5x110.
Recorded OEM baseline
Verification pending. Recorded values are provisional; confirm the exact vehicle baseline before calculations or purchases.
| Years | 939 (2006-2011) |
|---|---|
| Market | unspecified |
| Front wheel | 7.5x18 ET38 |
| Front tire | 225/45R18 |
| Rear wheel / tire | 7.5x18 ET38; 225/45R18 |
| Bolt pattern | 5x110 |
| Center bore | Not verified |
| Thread size | Not verified |
| Fastener / seat | Not verified |
How to use this record
The calculator compares nominal wheel and tire position with this OEM baseline. It does not calculate fender, suspension, brake, steering, or loaded clearance. Tires with the same printed size can differ by manufacturer. Confirm applicability for the exact year, market, trim, and package, then measure or test-fit before buying.
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