Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 295/40-20 | 275/45-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.29 (744) | 29.74 (755.5) | 0.45 (11.5) 1.5% |
| Width inches (mm) | 11.61 (295) | 10.83 (275) | -0.79 (-20) -6.8% |
| Circum. inches (mm) | 92.02 (2337.34) | 93.44 (2373.47) | 1.42 (36.13) 1.5% |
| Sidewall Height inches (mm) | 4.65 (118) | 4.87 (123.75) | 0.23 (5.75) 4.9% |
| Revolutions per mile (km) | 688.54 (427.84) | 678.05 (421.32) | -10.48 (-6.51) -1.5% |
275/45-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.31 mph (32.68 km/h) |
| 25 mph (40.23 km/h) | 25.39 mph (40.86 km/h) |
| 30 mph (48.28 km/h) | 30.46 mph (49.03 km/h) |
| 35 mph (56.33 km/h) | 35.54 mph (57.2 km/h) |
| 40 mph (64.37 km/h) | 40.62 mph (65.37 km/h) |
| 45 mph (72.42 km/h) | 45.7 mph (73.54 km/h) |
| 50 mph (80.47 km/h) | 50.77 mph (81.71 km/h) |
| 55 mph (88.51 km/h) | 55.85 mph (89.88 km/h) |
| 60 mph (96.56 km/h) | 60.93 mph (98.05 km/h) |
| 65 mph (104.61 km/h) | 66 mph (106.22 km/h) |
| 70 mph (112.65 km/h) | 71.08 mph (114.4 km/h) |
| 75 mph (120.7 km/h) | 76.16 mph (122.57 km/h) |
| 80 mph (128.75 km/h) | 81.24 mph (130.74 km/h) |
| 85 mph (136.79 km/h) | 86.31 mph (138.91 km/h) |
| 90 mph (144.84 km/h) | 91.39 mph (147.08 km/h) |
| 95 mph (152.89 km/h) | 96.47 mph (155.25 km/h) |
| 100 mph (160.93 km/h) | 101.55 mph (163.42 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1726 | 2005 | 2159 | 2254 | 2357 | 2430 | 2511 | 2607 | 2739 | 2871 | 3018 | 3135 | 3348 | 3583 | 3767 | 3884 | 3950 | 4193 | 4530 | 5265 |
Better Fuel Economy Factory Ratios Increased Power
