Smart Roadster Coupe Tire Size & Rim Specifications by Year and Trim
The Smart Roadster Coupe features various tire size options depending on its model year and trim level. Typical tire sizes range from 195/45 R16 to 205/50 R16, with rim widths commonly between 6.5 and 7 inches. Always check your vehicle’s manual or the tire placard for exact specifications.\n\nTrim variations impact tire and rim sizes, with sportier trims often equipped with wider rims and lower-profile tires for improved handling. Understanding the exact tire markings helps you compare trims effectively and make informed decisions when replacing tires or rims.\n\nWhen examining tire size markings, note that the first number indicates tire width in millimeters, the second is the aspect ratio (height to width), followed by the rim diameter in inches. Rim width × diameter combinations must match to ensure proper tire fitment and vehicle performance.\n\nFor optimal safety and performance, use these specifications as your guide when shopping for tires or upgrading wheels on your Smart Roadster Coupe. Consulting a tire professional is recommended when in doubt.
| Make / model / trim | Year | Tire size | Wheel |
|---|---|---|---|
| Smart Roadster Coupe 0.7 | 2005 | 185/55R15 | 5" × 15" |
| Smart Roadster Coupe 0.7 Brabus | 2005 | 185/55R15 | 5" × 15" |
| Smart Roadster Coupe 0.7 | 2004 | 185/55R15 | 5" × 15" |
| Smart Roadster Coupe 0.7 Brabus | 2004 | 185/55R15 | 5" × 15" |
| Smart Roadster Coupe 0.7 | 2003 | 185/55R15 | 5" × 15" |
| Smart Roadster Coupe 0.7 Brabus | 2003 | 185/55R15 | 5" × 15" |
For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Smart Roadster Coupe.
FAQ
- What tire sizes are common on the Smart Roadster Coupe?
- Common tire sizes include 195/45 R16 and 205/50 R16, depending on the model year and trim.
- How do rim width and diameter vary by trim?
- Sport trims typically have wider rims, ranging from 6.5 to 7 inches in width, paired with 16-inch diameter rims.
- Can I use tires from one trim on another trim?
- It’s important to match tire size and rim specifications to your specific trim to maintain vehicle performance and safety.
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 |