Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 315/35-17 | 345/40-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.68 (652.3) | 27.87 (707.8) | 2.19 (55.5) 8.5% |
| Width inches (mm) | 12.4 (315) | 13.58 (345) | 1.18 (30) 9.5% |
| Circum. inches (mm) | 80.68 (2049.26) | 87.54 (2223.62) | 6.86 (174.36) 8.5% |
| Sidewall Height inches (mm) | 4.34 (110.25) | 5.43 (138) | 1.09 (27.75) 25.2% |
| Revolutions per mile (km) | 785.33 (487.98) | 723.75 (449.72) | -61.58 (-38.26) -7.8% |
345/40-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.7 mph (34.93 km/h) |
| 25 mph (40.23 km/h) | 27.13 mph (43.66 km/h) |
| 30 mph (48.28 km/h) | 32.55 mph (52.39 km/h) |
| 35 mph (56.33 km/h) | 37.98 mph (61.12 km/h) |
| 40 mph (64.37 km/h) | 43.4 mph (69.85 km/h) |
| 45 mph (72.42 km/h) | 48.83 mph (78.58 km/h) |
| 50 mph (80.47 km/h) | 54.25 mph (87.31 km/h) |
| 55 mph (88.51 km/h) | 59.68 mph (96.05 km/h) |
| 60 mph (96.56 km/h) | 65.11 mph (104.78 km/h) |
| 65 mph (104.61 km/h) | 70.53 mph (113.51 km/h) |
| 70 mph (112.65 km/h) | 75.96 mph (122.24 km/h) |
| 75 mph (120.7 km/h) | 81.38 mph (130.97 km/h) |
| 80 mph (128.75 km/h) | 86.81 mph (139.7 km/h) |
| 85 mph (136.79 km/h) | 92.23 mph (148.43 km/h) |
| 90 mph (144.84 km/h) | 97.66 mph (157.16 km/h) |
| 95 mph (152.89 km/h) | 103.08 mph (165.9 km/h) |
| 100 mph (160.93 km/h) | 108.51 mph (174.63 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1842 | 2140 | 2304 | 2406 | 2516 | 2594 | 2680 | 2782 | 2923 | 3064 | 3221 | 3347 | 3574 | 3825 | 4021 | 4146 | 4217 | 4475 | 4836 | 5619 |
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