Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 160/60-15 | 100/90-21 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 22.56 (573) | 28.09 (713.4) | 5.53 (140.4) 24.5% |
| Width inches (mm) | 6.3 (160) | 3.94 (100) | -2.36 (-60) -37.5% |
| Circum. inches (mm) | 70.87 (1800.13) | 88.24 (2241.21) | 17.37 (441.08) 24.5% |
| Sidewall Height inches (mm) | 3.78 (96) | 3.54 (90) | -0.24 (-6) -6.2% |
| Revolutions per mile (km) | 894.01 (555.51) | 718.07 (446.19) | -175.95 (-109.33) -19.7% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.9 mph (40.07 km/h) |
| 25 mph (40.23 km/h) | 31.13 mph (50.09 km/h) |
| 30 mph (48.28 km/h) | 37.35 mph (60.11 km/h) |
| 35 mph (56.33 km/h) | 43.58 mph (70.13 km/h) |
| 40 mph (64.37 km/h) | 49.8 mph (80.15 km/h) |
| 45 mph (72.42 km/h) | 56.03 mph (90.17 km/h) |
| 50 mph (80.47 km/h) | 62.25 mph (100.18 km/h) |
| 55 mph (88.51 km/h) | 68.48 mph (110.2 km/h) |
| 60 mph (96.56 km/h) | 74.7 mph (120.22 km/h) |
| 65 mph (104.61 km/h) | 80.93 mph (130.24 km/h) |
| 70 mph (112.65 km/h) | 87.15 mph (140.26 km/h) |
| 75 mph (120.7 km/h) | 93.38 mph (150.28 km/h) |
| 80 mph (128.75 km/h) | 99.6 mph (160.29 km/h) |
| 85 mph (136.79 km/h) | 105.83 mph (170.31 km/h) |
| 90 mph (144.84 km/h) | 112.05 mph (180.33 km/h) |
| 95 mph (152.89 km/h) | 118.28 mph (190.35 km/h) |
| 100 mph (160.93 km/h) | 124.5 mph (200.37 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1827 | 2123 | 2286 | 2387 | 2496 | 2574 | 2659 | 2760 | 2900 | 3040 | 3196 | 3320 | 3546 | 3795 | 3989 | 4113 | 4183 | 4440 | 4798 | 5575 |
Better Fuel Economy Factory Ratios Increased Power
