Tire Size Finder (optional):
Stock Sizes
- 255/75-16
Plus Sizes
- 255/75-16
Accepts P-Metric and Inches
| 305/40-23 | 190/50-17 | Difference | |
|---|---|---|---|
| Diameter inches (mm) | 32.61 (828.2) | 24.48 (621.8) | -8.13 (-206.4) -24.9% |
| Width inches (mm) | 12.01 (305) | 7.48 (190) | -4.53 (-115) -37.7% |
| Circum. inches (mm) | 102.44 (2601.87) | 76.91 (1953.44) | -25.53 (-648.42) -24.9% |
| Sidewall Height inches (mm) | 4.8 (122) | 3.74 (95) | -1.06 (-27) -22.1% |
| Revolutions per mile (km) | 618.53 (384.34) | 823.85 (511.92) | 205.32 (127.58) 33.2% |
Speedometer Difference
| Speedo Reading | Actual Speed |
|---|---|
| 20 mph (32.19 km/h) | 15.02 mph (24.17 km/h) |
| 25 mph (40.23 km/h) | 18.77 mph (30.21 km/h) |
| 30 mph (48.28 km/h) | 22.52 mph (36.25 km/h) |
| 35 mph (56.33 km/h) | 26.28 mph (42.29 km/h) |
| 40 mph (64.37 km/h) | 30.03 mph (48.33 km/h) |
| 45 mph (72.42 km/h) | 33.79 mph (54.37 km/h) |
| 50 mph (80.47 km/h) | 37.54 mph (60.41 km/h) |
| 55 mph (88.51 km/h) | 41.29 mph (66.46 km/h) |
| 60 mph (96.56 km/h) | 45.05 mph (72.5 km/h) |
| 65 mph (104.61 km/h) | 48.8 mph (78.54 km/h) |
| 70 mph (112.65 km/h) | 52.55 mph (84.58 km/h) |
| 75 mph (120.7 km/h) | 56.31 mph (90.62 km/h) |
| 80 mph (128.75 km/h) | 60.06 mph (96.66 km/h) |
| 85 mph (136.79 km/h) | 63.82 mph (102.7 km/h) |
| 90 mph (144.84 km/h) | 67.57 mph (108.74 km/h) |
| 95 mph (152.89 km/h) | 71.32 mph (114.79 km/h) |
| 100 mph (160.93 km/h) | 75.08 mph (120.83 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2097 | 2436 | 2623 | 2739 | 2864 | 2953 | 3051 | 3167 | 3328 | 3488 | 3667 | 3809 | 4068 | 4354 | 4577 | 4719 | 4800 | 5094 | 5505 | 6397 |
Better Fuel Economy Factory Ratios Increased Power
