Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 125/70-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 23.89 (606.8) | -5.8 (-147.4) -19.5% |
| Width inches (mm) | 6.5 (165) | 4.92 (125) | -1.57 (-40) -24.2% |
| Circum. inches (mm) | 93.28 (2369.39) | 75.05 (1906.32) | -18.23 (-463.07) -19.5% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 3.44 (87.5) | -2.4 (-61) -41.1% |
| Revolutions per mile (km) | 679.22 (422.05) | 844.22 (524.57) | 164.99 (102.52) 24.3% |
125/70-17 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 16.09 mph (25.9 km/h) |
| 25 mph (40.23 km/h) | 20.11 mph (32.37 km/h) |
| 30 mph (48.28 km/h) | 24.14 mph (38.84 km/h) |
| 35 mph (56.33 km/h) | 28.16 mph (45.32 km/h) |
| 40 mph (64.37 km/h) | 32.18 mph (51.79 km/h) |
| 45 mph (72.42 km/h) | 36.21 mph (58.27 km/h) |
| 50 mph (80.47 km/h) | 40.23 mph (64.74 km/h) |
| 55 mph (88.51 km/h) | 44.25 mph (71.21 km/h) |
| 60 mph (96.56 km/h) | 48.27 mph (77.69 km/h) |
| 65 mph (104.61 km/h) | 52.3 mph (84.16 km/h) |
| 70 mph (112.65 km/h) | 56.32 mph (90.64 km/h) |
| 75 mph (120.7 km/h) | 60.34 mph (97.11 km/h) |
| 80 mph (128.75 km/h) | 64.36 mph (103.59 km/h) |
| 85 mph (136.79 km/h) | 68.39 mph (110.06 km/h) |
| 90 mph (144.84 km/h) | 72.41 mph (116.53 km/h) |
| 95 mph (152.89 km/h) | 76.43 mph (123.01 km/h) |
| 100 mph (160.93 km/h) | 80.46 mph (129.48 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2148 | 2496 | 2688 | 2807 | 2935 | 3026 | 3127 | 3245 | 3410 | 3575 | 3757 | 3904 | 4169 | 4461 | 4690 | 4836 | 4918 | 5220 | 5641 | 6555 |
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