Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 145/70-15 | 235/50-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.99 (584) | 24.25 (616) | 1.26 (32) 5.5% |
| Width inches (mm) | 5.71 (145) | 9.25 (235) | 3.54 (90) 62.1% |
| Circum. inches (mm) | 72.23 (1834.69) | 76.19 (1935.22) | 3.96 (100.53) 5.5% |
| Sidewall Height inches (mm) | 4 (101.5) | 4.63 (117.5) | 0.63 (16) 15.8% |
| Revolutions per mile (km) | 877.17 (545.05) | 831.61 (516.74) | -45.57 (-28.31) -5.2% |
235/50-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 21.1 mph (33.95 km/h) |
| 25 mph (40.23 km/h) | 26.37 mph (42.44 km/h) |
| 30 mph (48.28 km/h) | 31.64 mph (50.93 km/h) |
| 35 mph (56.33 km/h) | 36.92 mph (59.41 km/h) |
| 40 mph (64.37 km/h) | 42.19 mph (67.9 km/h) |
| 45 mph (72.42 km/h) | 47.47 mph (76.39 km/h) |
| 50 mph (80.47 km/h) | 52.74 mph (84.88 km/h) |
| 55 mph (88.51 km/h) | 58.01 mph (93.36 km/h) |
| 60 mph (96.56 km/h) | 63.29 mph (101.85 km/h) |
| 65 mph (104.61 km/h) | 68.56 mph (110.34 km/h) |
| 70 mph (112.65 km/h) | 73.84 mph (118.83 km/h) |
| 75 mph (120.7 km/h) | 79.11 mph (127.31 km/h) |
| 80 mph (128.75 km/h) | 84.38 mph (135.8 km/h) |
| 85 mph (136.79 km/h) | 89.66 mph (144.29 km/h) |
| 90 mph (144.84 km/h) | 94.93 mph (152.78 km/h) |
| 95 mph (152.89 km/h) | 100.21 mph (161.27 km/h) |
| 100 mph (160.93 km/h) | 105.48 mph (169.75 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2116 | 2458 | 2648 | 2765 | 2891 | 2981 | 3080 | 3197 | 3359 | 3521 | 3701 | 3845 | 4106 | 4395 | 4620 | 4764 | 4845 | 5142 | 5556 | 6457 |
Better Fuel Economy Factory Ratios Increased Power
