Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 345/30-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 23.15 (588) | -1.36 (-34.5) -5.5% |
| Width inches (mm) | 13.58 (345) | 13.58 (345) | 0 (0) 0% |
| Circum. inches (mm) | 76.99 (1955.64) | 72.73 (1847.26) | -4.27 (-108.38) -5.5% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 4.07 (103.5) | -0.68 (-17.25) -14.3% |
| Revolutions per mile (km) | 822.92 (511.34) | 871.21 (541.34) | 48.28 (30) 5.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.89 mph (30.4 km/h) |
| 25 mph (40.23 km/h) | 23.61 mph (38 km/h) |
| 30 mph (48.28 km/h) | 28.34 mph (45.6 km/h) |
| 35 mph (56.33 km/h) | 33.06 mph (53.21 km/h) |
| 40 mph (64.37 km/h) | 37.78 mph (60.81 km/h) |
| 45 mph (72.42 km/h) | 42.51 mph (68.41 km/h) |
| 50 mph (80.47 km/h) | 47.23 mph (76.01 km/h) |
| 55 mph (88.51 km/h) | 51.95 mph (83.61 km/h) |
| 60 mph (96.56 km/h) | 56.67 mph (91.21 km/h) |
| 65 mph (104.61 km/h) | 61.4 mph (98.81 km/h) |
| 70 mph (112.65 km/h) | 66.12 mph (106.41 km/h) |
| 75 mph (120.7 km/h) | 70.84 mph (114.01 km/h) |
| 80 mph (128.75 km/h) | 75.57 mph (121.61 km/h) |
| 85 mph (136.79 km/h) | 80.29 mph (129.21 km/h) |
| 90 mph (144.84 km/h) | 85.01 mph (136.81 km/h) |
| 95 mph (152.89 km/h) | 89.73 mph (144.41 km/h) |
| 100 mph (160.93 km/h) | 94.46 mph (152.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2217 | 2576 | 2774 | 2896 | 3028 | 3123 | 3227 | 3349 | 3519 | 3689 | 3877 | 4028 | 4302 | 4604 | 4840 | 4991 | 5076 | 5387 | 5821 | 6764 |
Better Fuel Economy Factory Ratios Increased Power
