Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/25-20 | 235/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 25.41 (645.5) | 27.95 (710) | 2.54 (64.5) 10% |
| Width inches (mm) | 10.83 (275) | 9.25 (235) | -1.57 (-40) -14.5% |
| Circum. inches (mm) | 79.84 (2027.9) | 87.82 (2230.53) | 7.98 (202.63) 10% |
| Sidewall Height inches (mm) | 2.71 (68.75) | 6.48 (164.5) | 3.77 (95.75) 139.3% |
| Revolutions per mile (km) | 793.6 (493.12) | 721.51 (448.32) | -72.09 (-44.8) -9.1% |
235/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22 mph (35.4 km/h) |
| 25 mph (40.23 km/h) | 27.5 mph (44.25 km/h) |
| 30 mph (48.28 km/h) | 33 mph (53.1 km/h) |
| 35 mph (56.33 km/h) | 38.5 mph (61.96 km/h) |
| 40 mph (64.37 km/h) | 44 mph (70.81 km/h) |
| 45 mph (72.42 km/h) | 49.5 mph (79.66 km/h) |
| 50 mph (80.47 km/h) | 55 mph (88.51 km/h) |
| 55 mph (88.51 km/h) | 60.5 mph (97.36 km/h) |
| 60 mph (96.56 km/h) | 66 mph (106.21 km/h) |
| 65 mph (104.61 km/h) | 71.49 mph (115.06 km/h) |
| 70 mph (112.65 km/h) | 76.99 mph (123.91 km/h) |
| 75 mph (120.7 km/h) | 82.49 mph (132.76 km/h) |
| 80 mph (128.75 km/h) | 87.99 mph (141.61 km/h) |
| 85 mph (136.79 km/h) | 93.49 mph (150.46 km/h) |
| 90 mph (144.84 km/h) | 98.99 mph (159.31 km/h) |
| 95 mph (152.89 km/h) | 104.49 mph (168.16 km/h) |
| 100 mph (160.93 km/h) | 109.99 mph (177.02 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
