Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/45-15 | 235/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.04 (610.5) | 23.33 (592.5) | -0.71 (-18) -2.9% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 75.51 (1917.94) | 73.28 (1861.39) | -2.23 (-56.55) -2.9% |
| Sidewall Height inches (mm) | 4.52 (114.75) | 4.16 (105.75) | -0.35 (-9) -7.8% |
| Revolutions per mile (km) | 839.1 (521.39) | 864.59 (537.23) | 25.49 (15.84) 3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.41 mph (31.24 km/h) |
| 25 mph (40.23 km/h) | 24.26 mph (39.05 km/h) |
| 30 mph (48.28 km/h) | 29.12 mph (46.86 km/h) |
| 35 mph (56.33 km/h) | 33.97 mph (54.67 km/h) |
| 40 mph (64.37 km/h) | 38.82 mph (62.48 km/h) |
| 45 mph (72.42 km/h) | 43.67 mph (70.29 km/h) |
| 50 mph (80.47 km/h) | 48.53 mph (78.09 km/h) |
| 55 mph (88.51 km/h) | 53.38 mph (85.9 km/h) |
| 60 mph (96.56 km/h) | 58.23 mph (93.71 km/h) |
| 65 mph (104.61 km/h) | 63.08 mph (101.52 km/h) |
| 70 mph (112.65 km/h) | 67.94 mph (109.33 km/h) |
| 75 mph (120.7 km/h) | 72.79 mph (117.14 km/h) |
| 80 mph (128.75 km/h) | 77.64 mph (124.95 km/h) |
| 85 mph (136.79 km/h) | 82.49 mph (132.76 km/h) |
| 90 mph (144.84 km/h) | 87.35 mph (140.57 km/h) |
| 95 mph (152.89 km/h) | 92.2 mph (148.38 km/h) |
| 100 mph (160.93 km/h) | 97.05 mph (156.19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2200 | 2556 | 2753 | 2874 | 3005 | 3099 | 3202 | 3324 | 3492 | 3661 | 3848 | 3998 | 4269 | 4569 | 4803 | 4953 | 5037 | 5346 | 5777 | 6713 |
Better Fuel Economy Factory Ratios Increased Power
