Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 245/60-18 | 235/60-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.57 (751.2) | 29.1 (739.2) | -0.47 (-12) -1.6% |
| Width inches (mm) | 9.65 (245) | 9.25 (235) | -0.39 (-10) -4.1% |
| Circum. inches (mm) | 92.91 (2359.96) | 91.43 (2322.27) | -1.48 (-37.7) -1.6% |
| Sidewall Height inches (mm) | 5.79 (147) | 5.55 (141) | -0.24 (-6) -4.1% |
| Revolutions per mile (km) | 681.94 (423.73) | 693.01 (430.61) | 11.07 (6.88) 1.6% |
235/60-18 Tires
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 19.68 mph (31.67 km/h) |
| 25 mph (40.23 km/h) | 24.6 mph (39.59 km/h) |
| 30 mph (48.28 km/h) | 29.52 mph (47.51 km/h) |
| 35 mph (56.33 km/h) | 34.44 mph (55.43 km/h) |
| 40 mph (64.37 km/h) | 39.36 mph (63.35 km/h) |
| 45 mph (72.42 km/h) | 44.28 mph (71.26 km/h) |
| 50 mph (80.47 km/h) | 49.2 mph (79.18 km/h) |
| 55 mph (88.51 km/h) | 54.12 mph (87.1 km/h) |
| 60 mph (96.56 km/h) | 59.04 mph (95.02 km/h) |
| 65 mph (104.61 km/h) | 63.96 mph (102.94 km/h) |
| 70 mph (112.65 km/h) | 68.88 mph (110.85 km/h) |
| 75 mph (120.7 km/h) | 73.8 mph (118.77 km/h) |
| 80 mph (128.75 km/h) | 78.72 mph (126.69 km/h) |
| 85 mph (136.79 km/h) | 83.64 mph (134.61 km/h) |
| 90 mph (144.84 km/h) | 88.56 mph (142.53 km/h) |
| 95 mph (152.89 km/h) | 93.48 mph (150.45 km/h) |
| 100 mph (160.93 km/h) | 98.4 mph (158.36 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
