Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/65-15 | 205/55-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.47 (621.5) | 23.88 (606.5) | -0.59 (-15) -2.4% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 76.87 (1952.5) | 75.01 (1905.38) | -1.86 (-47.12) -2.4% |
| Sidewall Height inches (mm) | 4.73 (120.25) | 4.44 (112.75) | -0.3 (-7.5) -6.2% |
| Revolutions per mile (km) | 824.25 (512.16) | 844.63 (524.83) | 20.39 (12.67) 2.5% |
205/55-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.52 mph (31.41 km/h) |
| 25 mph (40.23 km/h) | 24.4 mph (39.26 km/h) |
| 30 mph (48.28 km/h) | 29.28 mph (47.12 km/h) |
| 35 mph (56.33 km/h) | 34.16 mph (54.97 km/h) |
| 40 mph (64.37 km/h) | 39.03 mph (62.82 km/h) |
| 45 mph (72.42 km/h) | 43.91 mph (70.67 km/h) |
| 50 mph (80.47 km/h) | 48.79 mph (78.53 km/h) |
| 55 mph (88.51 km/h) | 53.67 mph (86.38 km/h) |
| 60 mph (96.56 km/h) | 58.55 mph (94.23 km/h) |
| 65 mph (104.61 km/h) | 63.43 mph (102.08 km/h) |
| 70 mph (112.65 km/h) | 68.31 mph (109.94 km/h) |
| 75 mph (120.7 km/h) | 73.19 mph (117.79 km/h) |
| 80 mph (128.75 km/h) | 78.07 mph (125.64 km/h) |
| 85 mph (136.79 km/h) | 82.95 mph (133.49 km/h) |
| 90 mph (144.84 km/h) | 87.83 mph (141.35 km/h) |
| 95 mph (152.89 km/h) | 92.71 mph (149.2 km/h) |
| 100 mph (160.93 km/h) | 97.59 mph (157.05 km/h) |
| 2.35 | 2.73 | 2.94 | 3.07 | 3.21 | 3.31 | 3.42 | 3.55 | 3.73 | 3.91 | 4.11 | 4.27 | 4.56 | 4.88 | 5.13 | 5.29 | 5.38 | 5.71 | 6.17 | 7.17 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2149 | 2497 | 2689 | 2808 | 2936 | 3027 | 3128 | 3247 | 3412 | 3576 | 3759 | 3906 | 4171 | 4463 | 4692 | 4839 | 4921 | 5223 | 5643 | 6558 |
Better Fuel Economy Factory Ratios Increased Power
