Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 255/75-15 | 235/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 30.06 (763.5) | 27.95 (710) | -2.11 (-53.5) -7% |
| Width inches (mm) | 10.04 (255) | 9.25 (235) | -0.79 (-20) -7.8% |
| Circum. inches (mm) | 94.43 (2398.61) | 87.82 (2230.53) | -6.62 (-168.08) -7% |
| Sidewall Height inches (mm) | 7.53 (191.25) | 6.48 (164.5) | -1.05 (-26.75) -14% |
| Revolutions per mile (km) | 670.95 (416.91) | 721.51 (448.32) | 50.56 (31.41) 7.5% |
235/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 18.6 mph (29.93 km/h) |
| 25 mph (40.23 km/h) | 23.25 mph (37.41 km/h) |
| 30 mph (48.28 km/h) | 27.9 mph (44.9 km/h) |
| 35 mph (56.33 km/h) | 32.55 mph (52.38 km/h) |
| 40 mph (64.37 km/h) | 37.2 mph (59.86 km/h) |
| 45 mph (72.42 km/h) | 41.85 mph (67.35 km/h) |
| 50 mph (80.47 km/h) | 46.5 mph (74.83 km/h) |
| 55 mph (88.51 km/h) | 51.15 mph (82.31 km/h) |
| 60 mph (96.56 km/h) | 55.8 mph (89.79 km/h) |
| 65 mph (104.61 km/h) | 60.45 mph (97.28 km/h) |
| 70 mph (112.65 km/h) | 65.09 mph (104.76 km/h) |
| 75 mph (120.7 km/h) | 69.74 mph (112.24 km/h) |
| 80 mph (128.75 km/h) | 74.39 mph (119.73 km/h) |
| 85 mph (136.79 km/h) | 79.04 mph (127.21 km/h) |
| 90 mph (144.84 km/h) | 83.69 mph (134.69 km/h) |
| 95 mph (152.89 km/h) | 88.34 mph (142.17 km/h) |
| 100 mph (160.93 km/h) | 92.99 mph (149.66 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1836 | 2133 | 2297 | 2399 | 2508 | 2586 | 2672 | 2774 | 2914 | 3055 | 3211 | 3336 | 3563 | 3813 | 4008 | 4133 | 4203 | 4461 | 4821 | 5602 |
Better Fuel Economy Factory Ratios Increased Power
