Comparison of tire sizes 185/55 R16 and 185/50 R16
185/55R16
185
Tire width 
55
Profile height 
R16
Tire diameter 
522
RPM per km 185mm102mm610mm1916mm
185
55
16
185
50
16
| Parameters Sizes | Old | New | |||
|---|---|---|---|---|---|
| Diameter, mm | 610 | 591 | -19 (-3.1%) | ||
| Width, mm | 185 | 185 | 0 (0%) | ||
| Circumference, mm | 1916 | 1858 | -58 (-3%) | ||
| Profile height, mm | 102 | 93 | -9 (-8.8%) | ||
| RPM per km | 522 | 538 | +16 (+3.1%) | ||
| Clearance change, mm | -10 | ||||
| Result: | The diameter differs by -3.1%. | ||||
| Speedometer reading (km/h) | |
|---|---|
| Real speed (km/h) | 97 |
| Difference (km/h) | -3 |
Sizes for comparison of tires 185/55 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2
Sizes for comparison of tires 185/50 R16
R16
R15 -1
R17 +1
R14 -2
R18 +2