205/55R16 vs 225/50R16
225/50R16 is 1.0 mm shorter than 205/55R16 in overall diameter (−0.2%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 225/50R16 fitted, the speedometer reads 100 km/h when you are doing 99.8 km/h.
Dimensions side by side
| 205/55R16 | 225/50R16 | |
|---|---|---|
| Overall diameter | 632 mm (24.9″) | 631 mm (24.8″) |
| Section width | 205 mm | 225 mm |
| Sidewall height | 113 mm | 113 mm |
| Rim | 16″ | 16″ |
| Revolutions per km | 504 | 504 |
| In stock | 92 tires from $88.00 | 1 tire from $292.00 |
What changes
- Overall diameter: 225/50R16 is 1.0 mm shorter (−0.2%).
- Speedometer: reads 100 km/h at an actual 99.8 km/h with 225/50R16.
- 225/50R16 is 20 mm wider, so check clearance and the recommended rim width.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 205/55R16
Vehicles that use 225/50R16
See every alternate size for 205/55R16
Frequently asked questions
Can I use 225/50R16 instead of 205/55R16?
Usually, yes: 225/50R16 is within 3% of the overall diameter of 205/55R16 (−0.2%). Use wheels of the right size and width, match or exceed the original load index, and check clearance at full steering lock.
How much does the speedometer change between 205/55R16 and 225/50R16?
With 225/50R16 instead of 205/55R16, the speedometer shows 100 km/h when you are actually doing 99.8 km/h.
Which vehicles came with both 205/55R16 and 225/50R16?
Both sizes were original equipment, on different trims or packages, on the 2006–2008 Mercedes-Benz SLK280, 2003–2005 Mercedes-Benz C320, 1997–2004 Porsche Boxster, 1998–2004 Mercedes-Benz SLK230, 2001–2004 Mercedes-Benz SLK320, 2003–2004 Mercedes-Benz CLK320.