Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 185/82-14 | 235/45-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.94 (659) | 23.33 (592.5) | -2.62 (-66.5) -10.1% |
| Width inches (mm) | 7.28 (185) | 9.25 (235) | 1.97 (50) 27% |
| Circum. inches (mm) | 81.51 (2070.31) | 73.28 (1861.39) | -8.23 (-208.92) -10.1% |
| Sidewall Height inches (mm) | 5.97 (151.7) | 4.16 (105.75) | -1.81 (-45.95) -30.3% |
| Revolutions per mile (km) | 777.34 (483.02) | 864.59 (537.23) | 87.25 (54.21) 11.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.98 mph (28.94 km/h) |
| 25 mph (40.23 km/h) | 22.48 mph (36.17 km/h) |
| 30 mph (48.28 km/h) | 26.97 mph (43.41 km/h) |
| 35 mph (56.33 km/h) | 31.47 mph (50.64 km/h) |
| 40 mph (64.37 km/h) | 35.96 mph (57.88 km/h) |
| 45 mph (72.42 km/h) | 40.46 mph (65.11 km/h) |
| 50 mph (80.47 km/h) | 44.95 mph (72.35 km/h) |
| 55 mph (88.51 km/h) | 49.45 mph (79.58 km/h) |
| 60 mph (96.56 km/h) | 53.95 mph (86.82 km/h) |
| 65 mph (104.61 km/h) | 58.44 mph (94.05 km/h) |
| 70 mph (112.65 km/h) | 62.94 mph (101.29 km/h) |
| 75 mph (120.7 km/h) | 67.43 mph (108.52 km/h) |
| 80 mph (128.75 km/h) | 71.93 mph (115.76 km/h) |
| 85 mph (136.79 km/h) | 76.42 mph (122.99 km/h) |
| 90 mph (144.84 km/h) | 80.92 mph (130.23 km/h) |
| 95 mph (152.89 km/h) | 85.41 mph (137.46 km/h) |
| 100 mph (160.93 km/h) | 89.91 mph (144.69 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
