Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 90/90-18 | 130/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 24.38 (619.2) | 24.17 (613.8) | -0.21 (-5.4) -0.9% |
| Width inches (mm) | 3.54 (90) | 5.12 (130) | 1.57 (40) 44.4% |
| Circum. inches (mm) | 76.59 (1945.27) | 75.92 (1928.31) | -0.67 (-16.96) -0.9% |
| Sidewall Height inches (mm) | 3.19 (81) | 3.58 (91) | 0.39 (10) 12.3% |
| Revolutions per mile (km) | 827.31 (514.07) | 834.59 (518.59) | 7.28 (4.52) 0.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.83 mph (31.91 km/h) |
| 25 mph (40.23 km/h) | 24.78 mph (39.88 km/h) |
| 30 mph (48.28 km/h) | 29.74 mph (47.86 km/h) |
| 35 mph (56.33 km/h) | 34.69 mph (55.84 km/h) |
| 40 mph (64.37 km/h) | 39.65 mph (63.81 km/h) |
| 45 mph (72.42 km/h) | 44.61 mph (71.79 km/h) |
| 50 mph (80.47 km/h) | 49.56 mph (79.77 km/h) |
| 55 mph (88.51 km/h) | 54.52 mph (87.74 km/h) |
| 60 mph (96.56 km/h) | 59.48 mph (95.72 km/h) |
| 65 mph (104.61 km/h) | 64.43 mph (103.7 km/h) |
| 70 mph (112.65 km/h) | 69.39 mph (111.67 km/h) |
| 75 mph (120.7 km/h) | 74.35 mph (119.65 km/h) |
| 80 mph (128.75 km/h) | 79.3 mph (127.62 km/h) |
| 85 mph (136.79 km/h) | 84.26 mph (135.6 km/h) |
| 90 mph (144.84 km/h) | 89.22 mph (143.58 km/h) |
| 95 mph (152.89 km/h) | 94.17 mph (151.55 km/h) |
| 100 mph (160.93 km/h) | 99.13 mph (159.53 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2124 | 2467 | 2657 | 2775 | 2901 | 2991 | 3091 | 3208 | 3371 | 3534 | 3715 | 3859 | 4121 | 4410 | 4636 | 4781 | 4862 | 5161 | 5576 | 6480 |
Better Fuel Economy Factory Ratios Increased Power
