Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/65-14 | 145/85-13 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.42 (544.1) | 22.7 (576.7) | 1.28 (32.6) 6% |
| Width inches (mm) | 5.71 (145) | 5.71 (145) | 0 (0) 0% |
| Circum. inches (mm) | 67.3 (1709.34) | 71.33 (1811.76) | 4.03 (102.42) 6% |
| Sidewall Height inches (mm) | 3.71 (94.25) | 4.85 (123.25) | 1.14 (29) 30.8% |
| Revolutions per mile (km) | 941.5 (585.02) | 888.28 (551.95) | -53.22 (-33.07) -5.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.2 mph (34.12 km/h) |
| 25 mph (40.23 km/h) | 26.5 mph (42.64 km/h) |
| 30 mph (48.28 km/h) | 31.8 mph (51.17 km/h) |
| 35 mph (56.33 km/h) | 37.1 mph (59.7 km/h) |
| 40 mph (64.37 km/h) | 42.4 mph (68.23 km/h) |
| 45 mph (72.42 km/h) | 47.7 mph (76.76 km/h) |
| 50 mph (80.47 km/h) | 53 mph (85.29 km/h) |
| 55 mph (88.51 km/h) | 58.3 mph (93.82 km/h) |
| 60 mph (96.56 km/h) | 63.59 mph (102.35 km/h) |
| 65 mph (104.61 km/h) | 68.89 mph (110.88 km/h) |
| 70 mph (112.65 km/h) | 74.19 mph (119.4 km/h) |
| 75 mph (120.7 km/h) | 79.49 mph (127.93 km/h) |
| 80 mph (128.75 km/h) | 84.79 mph (136.46 km/h) |
| 85 mph (136.79 km/h) | 90.09 mph (144.99 km/h) |
| 90 mph (144.84 km/h) | 95.39 mph (153.52 km/h) |
| 95 mph (152.89 km/h) | 100.69 mph (162.05 km/h) |
| 100 mph (160.93 km/h) | 105.99 mph (170.58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2260 | 2626 | 2828 | 2953 | 3088 | 3184 | 3290 | 3415 | 3588 | 3761 | 3953 | 4107 | 4386 | 4694 | 4935 | 5089 | 5175 | 5493 | 5935 | 6897 |
Better Fuel Economy Factory Ratios Increased Power
