Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 275/40-20 | 265/40-20 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 28.66 (728) | 28.35 (720) | -0.31 (-8) -1.1% |
| Width inches (mm) | 10.83 (275) | 10.43 (265) | -0.39 (-10) -3.6% |
| Circum. inches (mm) | 90.04 (2287.08) | 89.05 (2261.95) | -0.99 (-25.13) -1.1% |
| Sidewall Height inches (mm) | 4.33 (110) | 4.17 (106) | -0.16 (-4) -3.6% |
| Revolutions per mile (km) | 703.67 (437.24) | 711.49 (442.1) | 7.82 (4.86) 1.1% |
265/40-20 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.78 mph (31.83 km/h) |
| 25 mph (40.23 km/h) | 24.73 mph (39.79 km/h) |
| 30 mph (48.28 km/h) | 29.67 mph (47.75 km/h) |
| 35 mph (56.33 km/h) | 34.62 mph (55.71 km/h) |
| 40 mph (64.37 km/h) | 39.56 mph (63.67 km/h) |
| 45 mph (72.42 km/h) | 44.51 mph (71.62 km/h) |
| 50 mph (80.47 km/h) | 49.45 mph (79.58 km/h) |
| 55 mph (88.51 km/h) | 54.4 mph (87.54 km/h) |
| 60 mph (96.56 km/h) | 59.34 mph (95.5 km/h) |
| 65 mph (104.61 km/h) | 64.29 mph (103.46 km/h) |
| 70 mph (112.65 km/h) | 69.23 mph (111.42 km/h) |
| 75 mph (120.7 km/h) | 74.18 mph (119.37 km/h) |
| 80 mph (128.75 km/h) | 79.12 mph (127.33 km/h) |
| 85 mph (136.79 km/h) | 84.07 mph (135.29 km/h) |
| 90 mph (144.84 km/h) | 89.01 mph (143.25 km/h) |
| 95 mph (152.89 km/h) | 93.96 mph (151.21 km/h) |
| 100 mph (160.93 km/h) | 98.9 mph (159.17 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1811 | 2103 | 2265 | 2365 | 2473 | 2550 | 2635 | 2735 | 2874 | 3013 | 3167 | 3290 | 3513 | 3760 | 3952 | 4076 | 4145 | 4399 | 4754 | 5524 |
Better Fuel Economy Factory Ratios Increased Power
