Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 100/90-18 | 110/80-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.09 (637.2) | 24.93 (633.2) | -0.16 (-4) -0.6% |
| Width inches (mm) | 3.94 (100) | 4.33 (110) | 0.39 (10) 10% |
| Circum. inches (mm) | 78.81 (2001.82) | 78.32 (1989.26) | -0.49 (-12.57) -0.6% |
| Sidewall Height inches (mm) | 3.54 (90) | 3.46 (88) | -0.08 (-2) -2.2% |
| Revolutions per mile (km) | 803.94 (499.54) | 809.02 (502.7) | 5.08 (3.16) 0.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.87 mph (31.98 km/h) |
| 25 mph (40.23 km/h) | 24.84 mph (39.98 km/h) |
| 30 mph (48.28 km/h) | 29.81 mph (47.98 km/h) |
| 35 mph (56.33 km/h) | 34.78 mph (55.97 km/h) |
| 40 mph (64.37 km/h) | 39.75 mph (63.97 km/h) |
| 45 mph (72.42 km/h) | 44.72 mph (71.97 km/h) |
| 50 mph (80.47 km/h) | 49.69 mph (79.96 km/h) |
| 55 mph (88.51 km/h) | 54.65 mph (87.96 km/h) |
| 60 mph (96.56 km/h) | 59.62 mph (95.95 km/h) |
| 65 mph (104.61 km/h) | 64.59 mph (103.95 km/h) |
| 70 mph (112.65 km/h) | 69.56 mph (111.95 km/h) |
| 75 mph (120.7 km/h) | 74.53 mph (119.94 km/h) |
| 80 mph (128.75 km/h) | 79.5 mph (127.94 km/h) |
| 85 mph (136.79 km/h) | 84.47 mph (135.94 km/h) |
| 90 mph (144.84 km/h) | 89.44 mph (143.93 km/h) |
| 95 mph (152.89 km/h) | 94.4 mph (151.93 km/h) |
| 100 mph (160.93 km/h) | 99.37 mph (159.92 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2059 | 2392 | 2576 | 2690 | 2812 | 2900 | 2996 | 3110 | 3268 | 3425 | 3601 | 3741 | 3995 | 4275 | 4494 | 4634 | 4713 | 5002 | 5405 | 6282 |
Better Fuel Economy Factory Ratios Increased Power
