Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 165/90-18 | 330/65-18 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 29.69 (754.2) | 34.89 (886.2) | 5.2 (132) 17.5% |
| Width inches (mm) | 6.5 (165) | 12.99 (330) | 6.5 (165) 100% |
| Circum. inches (mm) | 93.28 (2369.39) | 109.61 (2784.08) | 16.33 (414.69) 17.5% |
| Sidewall Height inches (mm) | 5.85 (148.5) | 8.44 (214.5) | 2.6 (66) 44.4% |
| Revolutions per mile (km) | 679.22 (422.05) | 578.05 (359.18) | -101.17 (-62.86) -14.9% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 23.5 mph (37.82 km/h) |
| 25 mph (40.23 km/h) | 29.38 mph (47.28 km/h) |
| 30 mph (48.28 km/h) | 35.25 mph (56.73 km/h) |
| 35 mph (56.33 km/h) | 41.13 mph (66.19 km/h) |
| 40 mph (64.37 km/h) | 47 mph (75.64 km/h) |
| 45 mph (72.42 km/h) | 52.88 mph (85.1 km/h) |
| 50 mph (80.47 km/h) | 58.75 mph (94.55 km/h) |
| 55 mph (88.51 km/h) | 64.63 mph (104.01 km/h) |
| 60 mph (96.56 km/h) | 70.5 mph (113.46 km/h) |
| 65 mph (104.61 km/h) | 76.38 mph (122.92 km/h) |
| 70 mph (112.65 km/h) | 82.25 mph (132.37 km/h) |
| 75 mph (120.7 km/h) | 88.13 mph (141.83 km/h) |
| 80 mph (128.75 km/h) | 94 mph (151.28 km/h) |
| 85 mph (136.79 km/h) | 99.88 mph (160.74 km/h) |
| 90 mph (144.84 km/h) | 105.75 mph (170.19 km/h) |
| 95 mph (152.89 km/h) | 111.63 mph (179.65 km/h) |
| 100 mph (160.93 km/h) | 117.5 mph (189.1 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1471 | 1709 | 1840 | 1922 | 2009 | 2072 | 2141 | 2222 | 2335 | 2448 | 2573 | 2673 | 2854 | 3055 | 3211 | 3311 | 3368 | 3574 | 3862 | 4488 |
Better Fuel Economy Factory Ratios Increased Power
