Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 150/80-17 | 150/70-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.45 (671.8) | 26.27 (667.2) | -0.18 (-4.6) -0.7% |
| Width inches (mm) | 5.91 (150) | 5.91 (150) | 0 (0) 0% |
| Circum. inches (mm) | 83.09 (2110.52) | 82.52 (2096.07) | -0.57 (-14.45) -0.7% |
| Sidewall Height inches (mm) | 4.72 (120) | 4.13 (105) | -0.59 (-15) -12.5% |
| Revolutions per mile (km) | 762.53 (473.82) | 767.79 (477.08) | 5.26 (3.27) 0.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.86 mph (31.97 km/h) |
| 25 mph (40.23 km/h) | 24.83 mph (39.96 km/h) |
| 30 mph (48.28 km/h) | 29.79 mph (47.95 km/h) |
| 35 mph (56.33 km/h) | 34.76 mph (55.94 km/h) |
| 40 mph (64.37 km/h) | 39.73 mph (63.93 km/h) |
| 45 mph (72.42 km/h) | 44.69 mph (71.92 km/h) |
| 50 mph (80.47 km/h) | 49.66 mph (79.92 km/h) |
| 55 mph (88.51 km/h) | 54.62 mph (87.91 km/h) |
| 60 mph (96.56 km/h) | 59.59 mph (95.9 km/h) |
| 65 mph (104.61 km/h) | 64.55 mph (103.89 km/h) |
| 70 mph (112.65 km/h) | 69.52 mph (111.88 km/h) |
| 75 mph (120.7 km/h) | 74.49 mph (119.87 km/h) |
| 80 mph (128.75 km/h) | 79.45 mph (127.87 km/h) |
| 85 mph (136.79 km/h) | 84.42 mph (135.86 km/h) |
| 90 mph (144.84 km/h) | 89.38 mph (143.85 km/h) |
| 95 mph (152.89 km/h) | 94.35 mph (151.84 km/h) |
| 100 mph (160.93 km/h) | 99.32 mph (159.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1954 | 2270 | 2444 | 2553 | 2669 | 2752 | 2844 | 2952 | 3101 | 3251 | 3417 | 3550 | 3791 | 4057 | 4265 | 4398 | 4473 | 4748 | 5130 | 5961 |
Better Fuel Economy Factory Ratios Increased Power
