Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 225/75-15 | 235/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.29 (718.5) | 27.95 (710) | -0.33 (-8.5) -1.2% |
| Width inches (mm) | 8.86 (225) | 9.25 (235) | 0.39 (10) 4.4% |
| Circum. inches (mm) | 88.87 (2257.23) | 87.82 (2230.53) | -1.05 (-26.7) -1.2% |
| Sidewall Height inches (mm) | 6.64 (168.75) | 6.48 (164.5) | -0.17 (-4.25) -2.5% |
| Revolutions per mile (km) | 712.97 (443.02) | 721.51 (448.32) | 8.54 (5.3) 1.2% |
235/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.76 mph (31.81 km/h) |
| 25 mph (40.23 km/h) | 24.7 mph (39.76 km/h) |
| 30 mph (48.28 km/h) | 29.65 mph (47.71 km/h) |
| 35 mph (56.33 km/h) | 34.59 mph (55.66 km/h) |
| 40 mph (64.37 km/h) | 39.53 mph (63.61 km/h) |
| 45 mph (72.42 km/h) | 44.47 mph (71.56 km/h) |
| 50 mph (80.47 km/h) | 49.41 mph (79.52 km/h) |
| 55 mph (88.51 km/h) | 54.35 mph (87.47 km/h) |
| 60 mph (96.56 km/h) | 59.29 mph (95.42 km/h) |
| 65 mph (104.61 km/h) | 64.23 mph (103.37 km/h) |
| 70 mph (112.65 km/h) | 69.17 mph (111.32 km/h) |
| 75 mph (120.7 km/h) | 74.11 mph (119.27 km/h) |
| 80 mph (128.75 km/h) | 79.05 mph (127.22 km/h) |
| 85 mph (136.79 km/h) | 83.99 mph (135.18 km/h) |
| 90 mph (144.84 km/h) | 88.94 mph (143.13 km/h) |
| 95 mph (152.89 km/h) | 93.88 mph (151.08 km/h) |
| 100 mph (160.93 km/h) | 98.82 mph (159.03 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
