Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 125/80-16 | 235/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 23.87 (606.4) | 29.1 (739.2) | 5.23 (132.8) 21.9% |
| Width inches (mm) | 4.92 (125) | 9.25 (235) | 4.33 (110) 88% |
| Circum. inches (mm) | 75 (1905.06) | 91.43 (2322.27) | 16.43 (417.2) 21.9% |
| Sidewall Height inches (mm) | 3.94 (100) | 5.55 (141) | 1.61 (41) 41% |
| Revolutions per mile (km) | 844.77 (524.92) | 693.01 (430.61) | -151.77 (-94.3) -18% |
235/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 24.38 mph (39.24 km/h) |
| 25 mph (40.23 km/h) | 30.47 mph (49.04 km/h) |
| 30 mph (48.28 km/h) | 36.57 mph (58.85 km/h) |
| 35 mph (56.33 km/h) | 42.66 mph (68.66 km/h) |
| 40 mph (64.37 km/h) | 48.76 mph (78.47 km/h) |
| 45 mph (72.42 km/h) | 54.85 mph (88.28 km/h) |
| 50 mph (80.47 km/h) | 60.95 mph (98.09 km/h) |
| 55 mph (88.51 km/h) | 67.04 mph (107.9 km/h) |
| 60 mph (96.56 km/h) | 73.14 mph (117.71 km/h) |
| 65 mph (104.61 km/h) | 79.23 mph (127.52 km/h) |
| 70 mph (112.65 km/h) | 85.33 mph (137.33 km/h) |
| 75 mph (120.7 km/h) | 91.42 mph (147.13 km/h) |
| 80 mph (128.75 km/h) | 97.52 mph (156.94 km/h) |
| 85 mph (136.79 km/h) | 103.61 mph (166.75 km/h) |
| 90 mph (144.84 km/h) | 109.71 mph (176.56 km/h) |
| 95 mph (152.89 km/h) | 115.8 mph (186.37 km/h) |
| 100 mph (160.93 km/h) | 121.9 mph (196.18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1764 | 2049 | 2206 | 2304 | 2409 | 2484 | 2567 | 2664 | 2799 | 2934 | 3084 | 3204 | 3422 | 3662 | 3850 | 3970 | 4037 | 4285 | 4630 | 5381 |
Better Fuel Economy Factory Ratios Increased Power
