Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/70-10 | 255/70-12 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 19.09 (485) | 26.06 (661.8) | 6.96 (176.8) 36.5% |
| Width inches (mm) | 6.5 (165) | 10.04 (255) | 3.54 (90) 54.5% |
| Circum. inches (mm) | 59.99 (1523.67) | 81.85 (2079.11) | 21.87 (555.43) 36.5% |
| Sidewall Height inches (mm) | 4.55 (115.5) | 7.03 (178.5) | 2.48 (63) 54.5% |
| Revolutions per mile (km) | 1056.23 (656.31) | 774.06 (480.98) | -282.17 (-175.33) -26.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 27.29 mph (43.92 km/h) |
| 25 mph (40.23 km/h) | 34.11 mph (54.9 km/h) |
| 30 mph (48.28 km/h) | 40.94 mph (65.88 km/h) |
| 35 mph (56.33 km/h) | 47.76 mph (76.86 km/h) |
| 40 mph (64.37 km/h) | 54.58 mph (87.84 km/h) |
| 45 mph (72.42 km/h) | 61.4 mph (98.82 km/h) |
| 50 mph (80.47 km/h) | 68.23 mph (109.8 km/h) |
| 55 mph (88.51 km/h) | 75.05 mph (120.78 km/h) |
| 60 mph (96.56 km/h) | 81.87 mph (131.76 km/h) |
| 65 mph (104.61 km/h) | 88.69 mph (142.74 km/h) |
| 70 mph (112.65 km/h) | 95.52 mph (153.72 km/h) |
| 75 mph (120.7 km/h) | 102.34 mph (164.7 km/h) |
| 80 mph (128.75 km/h) | 109.16 mph (175.68 km/h) |
| 85 mph (136.79 km/h) | 115.99 mph (186.66 km/h) |
| 90 mph (144.84 km/h) | 122.81 mph (197.64 km/h) |
| 95 mph (152.89 km/h) | 129.63 mph (208.62 km/h) |
| 100 mph (160.93 km/h) | 136.45 mph (219.6 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1970 | 2288 | 2464 | 2573 | 2691 | 2775 | 2867 | 2976 | 3127 | 3277 | 3445 | 3579 | 3822 | 4091 | 4300 | 4434 | 4510 | 4786 | 5172 | 6010 |
Better Fuel Economy Factory Ratios Increased Power
