Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 170/80-16 | 140/70-15 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 26.71 (678.4) | 22.72 (577) | -3.99 (-101.4) -14.9% |
| Width inches (mm) | 6.69 (170) | 5.51 (140) | -1.18 (-30) -17.6% |
| Circum. inches (mm) | 83.91 (2131.26) | 71.37 (1812.7) | -12.54 (-318.56) -14.9% |
| Sidewall Height inches (mm) | 5.35 (136) | 3.86 (98) | -1.5 (-38) -27.9% |
| Revolutions per mile (km) | 755.12 (469.21) | 887.82 (551.66) | 132.7 (82.46) 17.6% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 17.01 mph (27.38 km/h) |
| 25 mph (40.23 km/h) | 21.26 mph (34.22 km/h) |
| 30 mph (48.28 km/h) | 25.52 mph (41.06 km/h) |
| 35 mph (56.33 km/h) | 29.77 mph (47.91 km/h) |
| 40 mph (64.37 km/h) | 34.02 mph (54.75 km/h) |
| 45 mph (72.42 km/h) | 38.27 mph (61.6 km/h) |
| 50 mph (80.47 km/h) | 42.53 mph (68.44 km/h) |
| 55 mph (88.51 km/h) | 46.78 mph (75.28 km/h) |
| 60 mph (96.56 km/h) | 51.03 mph (82.13 km/h) |
| 65 mph (104.61 km/h) | 55.28 mph (88.97 km/h) |
| 70 mph (112.65 km/h) | 59.54 mph (95.82 km/h) |
| 75 mph (120.7 km/h) | 63.79 mph (102.66 km/h) |
| 80 mph (128.75 km/h) | 68.04 mph (109.5 km/h) |
| 85 mph (136.79 km/h) | 72.3 mph (116.35 km/h) |
| 90 mph (144.84 km/h) | 76.55 mph (123.19 km/h) |
| 95 mph (152.89 km/h) | 80.8 mph (130.04 km/h) |
| 100 mph (160.93 km/h) | 85.05 mph (136.88 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2259 | 2625 | 2827 | 2952 | 3086 | 3182 | 3288 | 3413 | 3586 | 3759 | 3951 | 4105 | 4384 | 4692 | 4932 | 5086 | 5172 | 5490 | 5932 | 6893 |
Better Fuel Economy Factory Ratios Increased Power
