Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 215/80-15 | 235/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.54 (725) | 27.95 (710) | -0.59 (-15) -2.1% |
| Width inches (mm) | 8.46 (215) | 9.25 (235) | 0.79 (20) 9.3% |
| Circum. inches (mm) | 89.67 (2277.65) | 87.82 (2230.53) | -1.86 (-47.12) -2.1% |
| Sidewall Height inches (mm) | 6.77 (172) | 6.48 (164.5) | -0.3 (-7.5) -4.4% |
| Revolutions per mile (km) | 706.58 (439.05) | 721.51 (448.32) | 14.93 (9.28) 2.1% |
235/70-15 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.59 mph (31.52 km/h) |
| 25 mph (40.23 km/h) | 24.48 mph (39.4 km/h) |
| 30 mph (48.28 km/h) | 29.38 mph (47.28 km/h) |
| 35 mph (56.33 km/h) | 34.28 mph (55.16 km/h) |
| 40 mph (64.37 km/h) | 39.17 mph (63.04 km/h) |
| 45 mph (72.42 km/h) | 44.07 mph (70.92 km/h) |
| 50 mph (80.47 km/h) | 48.97 mph (78.8 km/h) |
| 55 mph (88.51 km/h) | 53.86 mph (86.68 km/h) |
| 60 mph (96.56 km/h) | 58.76 mph (94.56 km/h) |
| 65 mph (104.61 km/h) | 63.66 mph (102.44 km/h) |
| 70 mph (112.65 km/h) | 68.55 mph (110.32 km/h) |
| 75 mph (120.7 km/h) | 73.45 mph (118.2 km/h) |
| 80 mph (128.75 km/h) | 78.34 mph (126.08 km/h) |
| 85 mph (136.79 km/h) | 83.24 mph (133.96 km/h) |
| 90 mph (144.84 km/h) | 88.14 mph (141.84 km/h) |
| 95 mph (152.89 km/h) | 93.03 mph (149.72 km/h) |
| 100 mph (160.93 km/h) | 97.93 mph (157.61 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
