Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 265/30-21 | 245/35-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 27.26 (692.4) | 27.75 (704.9) | 0.49 (12.5) 1.8% |
| Width inches (mm) | 10.43 (265) | 9.65 (245) | -0.79 (-20) -7.5% |
| Circum. inches (mm) | 85.64 (2175.24) | 87.19 (2214.51) | 1.55 (39.27) 1.8% |
| Sidewall Height inches (mm) | 3.13 (79.5) | 3.38 (85.75) | 0.25 (6.25) 7.9% |
| Revolutions per mile (km) | 739.85 (459.72) | 726.73 (451.57) | -13.12 (-8.15) -1.8% |
245/35-21 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 20.36 mph (32.77 km/h) |
| 25 mph (40.23 km/h) | 25.45 mph (40.96 km/h) |
| 30 mph (48.28 km/h) | 30.54 mph (49.15 km/h) |
| 35 mph (56.33 km/h) | 35.63 mph (57.34 km/h) |
| 40 mph (64.37 km/h) | 40.72 mph (65.54 km/h) |
| 45 mph (72.42 km/h) | 45.81 mph (73.73 km/h) |
| 50 mph (80.47 km/h) | 50.9 mph (81.92 km/h) |
| 55 mph (88.51 km/h) | 55.99 mph (90.11 km/h) |
| 60 mph (96.56 km/h) | 61.08 mph (98.3 km/h) |
| 65 mph (104.61 km/h) | 66.17 mph (106.5 km/h) |
| 70 mph (112.65 km/h) | 71.26 mph (114.69 km/h) |
| 75 mph (120.7 km/h) | 76.35 mph (122.88 km/h) |
| 80 mph (128.75 km/h) | 81.44 mph (131.07 km/h) |
| 85 mph (136.79 km/h) | 86.53 mph (139.26 km/h) |
| 90 mph (144.84 km/h) | 91.62 mph (147.46 km/h) |
| 95 mph (152.89 km/h) | 96.72 mph (155.65 km/h) |
| 100 mph (160.93 km/h) | 101.81 mph (163.84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1849 | 2148 | 2314 | 2416 | 2526 | 2605 | 2691 | 2794 | 2935 | 3077 | 3234 | 3360 | 3589 | 3840 | 4037 | 4163 | 4234 | 4494 | 4856 | 5643 |
Better Fuel Economy Factory Ratios Increased Power
