Ferrari 348 Spider Wheel Lug Pattern, Offset, Center Bore & Rim Size Reference
The Ferrari 348 Spider features distinct wheel lug patterns crucial for ensuring the proper fitment of wheels and tires. This guide provides detailed specifications including lug count × pitch circle diameter (PCD), offset ET, center bore, and rim sizes sorted by model year.\n\nTypically, the Ferrari 348 Spider uses a 5 × 108 mm lug pattern, a common configuration for many Ferrari models of its era. Correct offset ET values and center bore measurements ensure compatibility and maintain driving performance and safety.\n\nWheel rim sizes vary depending on the year and factory options, generally falling within 16-17 inches in diameter. Always verify these specifications when selecting aftermarket or replacement wheels for your Ferrari 348 Spider.\n\nUsing the right lug pattern, offset, and center bore guarantees proper mounting without vibrations or clearance issues, preserving the vehicle’s handling characteristics and aesthetic appeal.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Ferrari 348 Spider 3.4 | 1995 | 215/50R17 | 8 | 18 | 5×108 | 40 | 67.1 | M14*1,5 |
| Ferrari 348 Spider 3.4 | 1994 | 215/50R17 | 8 | 18 | 5×108 | 40 | 67.1 | M14*1,5 |
| Ferrari 348 Spider 3.4 | 1993 | 215/50R17 | 8 | 18 | 5×108 | 40 | 67.1 | M14*1,5 |
FAQ
- What is the lug pattern for the Ferrari 348 Spider?
- The Ferrari 348 Spider typically features a 5 × 108 mm lug pattern.
- What does the offset ET signify in wheel specifications?
- Offset ET is the distance between the wheel's mounting surface and its centerline, impacting wheel fitment and clearance.
- Why is knowing the center bore important for Ferrari 348 Spider wheels?
- The center bore ensures the wheel fits snugly on the hub, preventing vibrations and providing secure mounting.
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 |
