Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 120/70-15 | 130/90-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 21.61 (549) | 24.21 (615) | 2.6 (66) 12% |
| Width inches (mm) | 4.72 (120) | 5.12 (130) | 0.39 (10) 8.3% |
| Circum. inches (mm) | 67.9 (1724.73) | 76.07 (1932.08) | 8.16 (207.35) 12% |
| Sidewall Height inches (mm) | 3.31 (84) | 4.61 (117) | 1.3 (33) 39.3% |
| Revolutions per mile (km) | 933.1 (579.8) | 832.96 (517.58) | -100.14 (-62.22) -10.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.4 mph (36.06 km/h) |
| 25 mph (40.23 km/h) | 28.01 mph (45.07 km/h) |
| 30 mph (48.28 km/h) | 33.61 mph (54.08 km/h) |
| 35 mph (56.33 km/h) | 39.21 mph (63.1 km/h) |
| 40 mph (64.37 km/h) | 44.81 mph (72.11 km/h) |
| 45 mph (72.42 km/h) | 50.41 mph (81.13 km/h) |
| 50 mph (80.47 km/h) | 56.01 mph (90.14 km/h) |
| 55 mph (88.51 km/h) | 61.61 mph (99.16 km/h) |
| 60 mph (96.56 km/h) | 67.21 mph (108.17 km/h) |
| 65 mph (104.61 km/h) | 72.81 mph (117.18 km/h) |
| 70 mph (112.65 km/h) | 78.42 mph (126.2 km/h) |
| 75 mph (120.7 km/h) | 84.02 mph (135.21 km/h) |
| 80 mph (128.75 km/h) | 89.62 mph (144.23 km/h) |
| 85 mph (136.79 km/h) | 95.22 mph (153.24 km/h) |
| 90 mph (144.84 km/h) | 100.82 mph (162.25 km/h) |
| 95 mph (152.89 km/h) | 106.42 mph (171.27 km/h) |
| 100 mph (160.93 km/h) | 112.02 mph (180.28 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2120 | 2462 | 2652 | 2769 | 2895 | 2986 | 3085 | 3202 | 3364 | 3527 | 3707 | 3852 | 4113 | 4402 | 4627 | 4772 | 4853 | 5150 | 5565 | 6467 |
Better Fuel Economy Factory Ratios Increased Power
