The 205/50R17 is a common tire size for midsize sedans such as Toyota Camry, Honda Accord, and Hyundai Sonata.
With a 102.5 mm sidewall (50% aspect ratio), this tire offers a balanced blend of ride comfort and handling precision — versatile for both city driving and spirited cornering.
Compared to the baseline 225/50R17, this tire's overall diameter differs by -3.0% — a speedometer calibrated for 225/50R17 would read 103.1 km/h at an actual 100 km/h.
OE on the Mazda 3 (BL 2009-2013 higher trims, including 2010 standard fitment). Load index 89V or 93W reinforced. Wheel width 6.5-7.5"; sidewall offers slightly more pothole margin than 205/45R17 while keeping comparable steering response.
Mainstream sedan sizes balance compound longevity against light all-season handling. When replacing, match the OE speed rating (H or V on most trims) — installing a lower rating voids many manufacturer load-test certifications and is illegal on autobahn-rated vehicles. Wheel-well clearance is rarely a concern at this rim diameter; speedometer drift across factory alternatives stays well inside the ±3% legal window.
| Tire Code | 205/50R17 |
| Section Width | 205 mm |
| Aspect Ratio | 50% |
| Rim Diameter | 17" |
| Sidewall Height | 102.5 mm |
| Overall Diameter | 636.8 mm / 25.07" |
| Circumference | 2000.6 mm / 78.76" |
| Revolutions per km | 499.9 |
| Revolutions per mile | 804.4 |
| Tire Code | OD (mm) | Δ mm | Δ % | Speedo at 100 km/h |
|---|---|---|---|---|
| 205/50R16 | 611.4 | -25.4 | -4.0% | 104.2 |
| 205/45R17 | 616.3 | -20.5 | -3.2% | 103.3 |
| 205/50R17 (current) | 636.8 | — | — | 100.0 |
| 215/50R17 | 646.8 | +10.0 | +1.6% | 98.5 |
| 225/50R17 | 656.8 | +20.0 | +3.1% | 97.0 |