Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 37/13.5-20 | 35/13.5-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 37.01 (940.18) | 35.12 (892.16) | -1.89 (-48.02) -5.1% |
| Width inches (mm) | 13.5 (343) | 13.5 (343) | 0 (0) 0% |
| Circum. inches (mm) | 116.29 (2953.66) | 110.35 (2802.8) | -5.94 (-150.86) -5.1% |
| Sidewall Height inches (mm) | 8.51 (216.09) | 7.56 (192.08) | -0.95 (-24.01) -11.1% |
| Revolutions per mile (km) | 544.86 (338.56) | 574.19 (356.78) | 29.33 (18.22) 5.4% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.98 mph (30.54 km/h) |
| 25 mph (40.23 km/h) | 23.72 mph (38.18 km/h) |
| 30 mph (48.28 km/h) | 28.47 mph (45.81 km/h) |
| 35 mph (56.33 km/h) | 33.21 mph (53.45 km/h) |
| 40 mph (64.37 km/h) | 37.96 mph (61.09 km/h) |
| 45 mph (72.42 km/h) | 42.7 mph (68.72 km/h) |
| 50 mph (80.47 km/h) | 47.45 mph (76.36 km/h) |
| 55 mph (88.51 km/h) | 52.19 mph (83.99 km/h) |
| 60 mph (96.56 km/h) | 56.94 mph (91.63 km/h) |
| 65 mph (104.61 km/h) | 61.68 mph (99.26 km/h) |
| 70 mph (112.65 km/h) | 66.42 mph (106.9 km/h) |
| 75 mph (120.7 km/h) | 71.17 mph (114.54 km/h) |
| 80 mph (128.75 km/h) | 75.91 mph (122.17 km/h) |
| 85 mph (136.79 km/h) | 80.66 mph (129.81 km/h) |
| 90 mph (144.84 km/h) | 85.4 mph (137.44 km/h) |
| 95 mph (152.89 km/h) | 90.15 mph (145.08 km/h) |
| 100 mph (160.93 km/h) | 94.89 mph (152.71 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1461 | 1697 | 1828 | 1909 | 1996 | 2058 | 2127 | 2207 | 2319 | 2431 | 2556 | 2655 | 2835 | 3034 | 3190 | 3289 | 3345 | 3550 | 3836 | 4458 |
Better Fuel Economy Factory Ratios Increased Power
