Audi TT Roadster (8N9) Wheel Lug Pattern, Offset & Center Bore Reference
The Audi TT Roadster (8N9) features a consistent wheel lug pattern designed to ensure secure and proper fitment across its production years. The typical lug pattern is 5x100 mm, with a center bore dimension engineered specifically for this model to accommodate factory wheels and compatible aftermarket options.\n\nOffset (ET) values for the Audi TT Roadster (8N9) generally range between ET32 and ET45, depending on the specific wheel size and model year. Proper offset is critical to maintaining correct suspension geometry and vehicle handling characteristics.\n\nStandard rim sizes for the 8N9 vary, commonly starting from 16 inches up to 18 inches in diameter. These dimensions factor into overall fitment and aesthetics, matching the wheel lug pattern and center bore to maintain safety and performance.\n\nThis reference provides year-sorted specifications to help you identify the correct wheel lug pattern, offset, and center bore measurements for your Audi TT Roadster (8N9). Use this data for precise wheel fitment and safe, optimal driving experience.
| Make / model / trim | Year | Tire | Rim width (in) | Rim diam. (in) | Bolt pattern | Offset ET | Bore DIA | Mounting |
|---|---|---|---|---|---|---|---|---|
| Audi TT Roadster (8N9) 1.8 T | 2006 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2006 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 3.2 VR6 quattro | 2006 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 2005 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2005 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 3.2 VR6 quattro | 2005 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 2004 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2004 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 3.2 VR6 quattro | 2004 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 2003 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2003 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 3.2 VR6 quattro | 2003 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 2002 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2002 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 2001 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2001 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 2000 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T | 1999 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
| Audi TT Roadster (8N9) 1.8 T quattro | 1999 | 205/55R16 | 6.5 | 16 | 5×100 | 35 | 57.1 | M14*1,5 |
FAQ
- What is the lug pattern for the Audi TT Roadster (8N9)?
- The Audi TT Roadster (8N9) has a lug pattern of 5x100 mm across its production years.
- What offset (ET) values are compatible with Audi TT Roadster (8N9) wheels?
- Compatible offset values range between ET32 and ET45 depending on wheel size and model year.
- What is the center bore size for the Audi TT Roadster (8N9)?
- The center bore for the Audi TT Roadster (8N9) wheels is approximately 57.1 mm, matching factory standards.
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 |
