Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 345/35-15 | 375/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.51 (622.5) | 29.76 (756) | 5.26 (133.5) 21.4% |
| Width inches (mm) | 13.58 (345) | 14.76 (375) | 1.18 (30) 8.7% |
| Circum. inches (mm) | 76.99 (1955.64) | 93.51 (2375.04) | 16.51 (419.4) 21.4% |
| Sidewall Height inches (mm) | 4.75 (120.75) | 7.38 (187.5) | 2.63 (66.75) 55.3% |
| Revolutions per mile (km) | 822.92 (511.34) | 677.61 (421.04) | -145.32 (-90.3) -17.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.29 mph (39.09 km/h) |
| 25 mph (40.23 km/h) | 30.36 mph (48.86 km/h) |
| 30 mph (48.28 km/h) | 36.43 mph (58.63 km/h) |
| 35 mph (56.33 km/h) | 42.51 mph (68.41 km/h) |
| 40 mph (64.37 km/h) | 48.58 mph (78.18 km/h) |
| 45 mph (72.42 km/h) | 54.65 mph (87.95 km/h) |
| 50 mph (80.47 km/h) | 60.72 mph (97.72 km/h) |
| 55 mph (88.51 km/h) | 66.8 mph (107.5 km/h) |
| 60 mph (96.56 km/h) | 72.87 mph (117.27 km/h) |
| 65 mph (104.61 km/h) | 78.94 mph (127.04 km/h) |
| 70 mph (112.65 km/h) | 85.01 mph (136.81 km/h) |
| 75 mph (120.7 km/h) | 91.08 mph (146.59 km/h) |
| 80 mph (128.75 km/h) | 97.16 mph (156.36 km/h) |
| 85 mph (136.79 km/h) | 103.23 mph (166.13 km/h) |
| 90 mph (144.84 km/h) | 109.3 mph (175.9 km/h) |
| 95 mph (152.89 km/h) | 115.37 mph (185.68 km/h) |
| 100 mph (160.93 km/h) | 121.45 mph (195.45 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1724 | 2003 | 2157 | 2253 | 2355 | 2429 | 2510 | 2605 | 2737 | 2869 | 3016 | 3133 | 3346 | 3581 | 3764 | 3882 | 3948 | 4190 | 4527 | 5261 |
Better Fuel Economy Factory Ratios Increased Power
