Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 280/80-16 | 315/85-16 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 33.64 (854.4) | 37.08 (941.9) | 3.44 (87.5) 10.2% |
| Width inches (mm) | 11.02 (280) | 12.4 (315) | 1.38 (35) 12.5% |
| Circum. inches (mm) | 105.68 (2684.18) | 116.5 (2959.07) | 10.82 (274.89) 10.2% |
| Sidewall Height inches (mm) | 8.82 (224) | 10.54 (267.75) | 1.72 (43.75) 19.5% |
| Revolutions per mile (km) | 599.57 (372.55) | 543.87 (337.94) | -55.7 (-34.61) -9.3% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 22.05 mph (35.48 km/h) |
| 25 mph (40.23 km/h) | 27.56 mph (44.35 km/h) |
| 30 mph (48.28 km/h) | 33.07 mph (53.22 km/h) |
| 35 mph (56.33 km/h) | 38.58 mph (62.1 km/h) |
| 40 mph (64.37 km/h) | 44.1 mph (70.97 km/h) |
| 45 mph (72.42 km/h) | 49.61 mph (79.84 km/h) |
| 50 mph (80.47 km/h) | 55.12 mph (88.71 km/h) |
| 55 mph (88.51 km/h) | 60.63 mph (97.58 km/h) |
| 60 mph (96.56 km/h) | 66.14 mph (106.45 km/h) |
| 65 mph (104.61 km/h) | 71.66 mph (115.32 km/h) |
| 70 mph (112.65 km/h) | 77.17 mph (124.19 km/h) |
| 75 mph (120.7 km/h) | 82.68 mph (133.06 km/h) |
| 80 mph (128.75 km/h) | 88.19 mph (141.93 km/h) |
| 85 mph (136.79 km/h) | 93.7 mph (150.8 km/h) |
| 90 mph (144.84 km/h) | 99.22 mph (159.67 km/h) |
| 95 mph (152.89 km/h) | 104.73 mph (168.55 km/h) |
| 100 mph (160.93 km/h) | 110.24 mph (177.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1384 | 1608 | 1732 | 1808 | 1891 | 1949 | 2014 | 2091 | 2197 | 2303 | 2421 | 2515 | 2686 | 2874 | 3021 | 3116 | 3169 | 3363 | 3634 | 4223 |
Better Fuel Economy Factory Ratios Increased Power
