Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/75-15 | 205/65-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.93 (658.5) | 25.49 (647.5) | -0.43 (-11) -1.7% |
| Width inches (mm) | 7.28 (185) | 8.07 (205) | 0.79 (20) 10.8% |
| Circum. inches (mm) | 81.45 (2068.74) | 80.09 (2034.18) | -1.36 (-34.56) -1.7% |
| Sidewall Height inches (mm) | 5.46 (138.75) | 5.25 (133.25) | -0.22 (-5.5) -4% |
| Revolutions per mile (km) | 777.93 (483.39) | 791.15 (491.6) | 13.22 (8.21) 1.7% |
205/65-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.67 mph (31.65 km/h) |
| 25 mph (40.23 km/h) | 24.58 mph (39.56 km/h) |
| 30 mph (48.28 km/h) | 29.5 mph (47.47 km/h) |
| 35 mph (56.33 km/h) | 34.42 mph (55.39 km/h) |
| 40 mph (64.37 km/h) | 39.33 mph (63.3 km/h) |
| 45 mph (72.42 km/h) | 44.25 mph (71.21 km/h) |
| 50 mph (80.47 km/h) | 49.16 mph (79.12 km/h) |
| 55 mph (88.51 km/h) | 54.08 mph (87.04 km/h) |
| 60 mph (96.56 km/h) | 59 mph (94.95 km/h) |
| 65 mph (104.61 km/h) | 63.91 mph (102.86 km/h) |
| 70 mph (112.65 km/h) | 68.83 mph (110.77 km/h) |
| 75 mph (120.7 km/h) | 73.75 mph (118.68 km/h) |
| 80 mph (128.75 km/h) | 78.66 mph (126.6 km/h) |
| 85 mph (136.79 km/h) | 83.58 mph (134.51 km/h) |
| 90 mph (144.84 km/h) | 88.5 mph (142.42 km/h) |
| 95 mph (152.89 km/h) | 93.41 mph (150.33 km/h) |
| 100 mph (160.93 km/h) | 98.33 mph (158.25 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | 2339 | 2519 | 2630 | 2750 | 2836 | 2930 | 3041 | 3196 | 3350 | 3521 | 3658 | 3907 | 4181 | 4395 | 4532 | 4609 | 4892 | 5286 | 6143 |
Better Fuel Economy Factory Ratios Increased Power
