Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/25-23 | 380/85-24 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.2 (741.7) | 49.43 (1255.6) | 20.23 (513.9) 69.3% |
| Width inches (mm) | 12.4 (315) | 14.96 (380) | 2.56 (65) 20.6% |
| Circum. inches (mm) | 91.74 (2330.12) | 155.3 (3944.58) | 63.56 (1614.46) 69.3% |
| Sidewall Height inches (mm) | 3.1 (78.75) | 12.72 (323) | 9.62 (244.25) 310.2% |
| Revolutions per mile (km) | 690.67 (429.16) | 407.99 (253.51) | -282.68 (-175.65) -40.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 33.86 mph (54.49 km/h) |
| 25 mph (40.23 km/h) | 42.32 mph (68.11 km/h) |
| 30 mph (48.28 km/h) | 50.79 mph (81.73 km/h) |
| 35 mph (56.33 km/h) | 59.25 mph (95.35 km/h) |
| 40 mph (64.37 km/h) | 67.71 mph (108.98 km/h) |
| 45 mph (72.42 km/h) | 76.18 mph (122.6 km/h) |
| 50 mph (80.47 km/h) | 84.64 mph (136.22 km/h) |
| 55 mph (88.51 km/h) | 93.11 mph (149.84 km/h) |
| 60 mph (96.56 km/h) | 101.57 mph (163.46 km/h) |
| 65 mph (104.61 km/h) | 110.04 mph (177.09 km/h) |
| 70 mph (112.65 km/h) | 118.5 mph (190.71 km/h) |
| 75 mph (120.7 km/h) | 126.97 mph (204.33 km/h) |
| 80 mph (128.75 km/h) | 135.43 mph (217.95 km/h) |
| 85 mph (136.79 km/h) | 143.89 mph (231.57 km/h) |
| 90 mph (144.84 km/h) | 152.36 mph (245.2 km/h) |
| 95 mph (152.89 km/h) | 160.82 mph (258.82 km/h) |
| 100 mph (160.93 km/h) | 169.29 mph (272.44 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Better Fuel Economy Factory Ratios Increased Power
