Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/75-16.5 | 28/12.5-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.97 (786.6) | 28.02 (711.72) | -2.95 (-74.88) -9.5% |
| Width inches (mm) | 9.65 (245) | 12.52 (318) | 2.87 (73) 29.8% |
| Circum. inches (mm) | 97.29 (2471.18) | 88.03 (2235.93) | -9.26 (-235.24) -9.5% |
| Sidewall Height inches (mm) | 7.23 (183.75) | 6.51 (165.36) | -0.72 (-18.39) -10% |
| Revolutions per mile (km) | 651.25 (404.66) | 719.76 (447.24) | 68.52 (42.57) 10.5% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.1 mph (29.12 km/h) |
| 25 mph (40.23 km/h) | 22.62 mph (36.4 km/h) |
| 30 mph (48.28 km/h) | 27.14 mph (43.68 km/h) |
| 35 mph (56.33 km/h) | 31.67 mph (50.97 km/h) |
| 40 mph (64.37 km/h) | 36.19 mph (58.25 km/h) |
| 45 mph (72.42 km/h) | 40.72 mph (65.53 km/h) |
| 50 mph (80.47 km/h) | 45.24 mph (72.81 km/h) |
| 55 mph (88.51 km/h) | 49.76 mph (80.09 km/h) |
| 60 mph (96.56 km/h) | 54.29 mph (87.37 km/h) |
| 65 mph (104.61 km/h) | 58.81 mph (94.65 km/h) |
| 70 mph (112.65 km/h) | 63.34 mph (101.93 km/h) |
| 75 mph (120.7 km/h) | 67.86 mph (109.21 km/h) |
| 80 mph (128.75 km/h) | 72.38 mph (116.49 km/h) |
| 85 mph (136.79 km/h) | 76.91 mph (123.77 km/h) |
| 90 mph (144.84 km/h) | 81.43 mph (131.05 km/h) |
| 95 mph (152.89 km/h) | 85.96 mph (138.33 km/h) |
| 100 mph (160.93 km/h) | 90.48 mph (145.61 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1832 | 2128 | 2292 | 2393 | 2502 | 2580 | 2666 | 2767 | 2907 | 3048 | 3203 | 3328 | 3554 | 3804 | 3998 | 4123 | 4193 | 4451 | 4809 | 5589 |
Better Fuel Economy Factory Ratios Increased Power
