Determining Tire Size: How to Read 205/55 R16 & Co. Correctly

Determining tire size sounds complicated, but with a few rules, it's very simple. This is precisely what's important if you want to buy tires online in Landshut or Lower Bavaria: Only with the correct size will everything fit properly in the end. In this article, you'll learn how to read the numbers on the tire, what load and speed indexes mean, and how to avoid common mistakes.

Tire Specifications Briefly Explained

An example: 205/55 R16 91V

• 205 = Tire width in millimeters
• 55 = Aspect ratio (height to width)
• R = Radial tire
• 16 = Rim diameter in inches
• 91 = Load index (load capacity)
• V = Speed index

The ADAC provides a very clear explanation of how to understand the speed index (e.g., V = up to 240 km/h). This helps if you are wavering between several options.

Where Can I Find the Correct Tire Size?

• In the registration certificate (vehicle registration document)
• On the current tire (tire sidewall)
• Often also in the fuel filler flap or door frame (depending on the manufacturer, e.g., for pressure specifications)

Why Load Index and Speed Index Are So Important

Many people only look at "width/inch". But load and speed indexes are safety-relevant. A tire must be able to carry the vehicle's weight and match the permissible maximum speed. If you often drive with heavy loads in Bavaria (family, trailer, professionally), the load index is particularly important.

How to Find Suitable Tires in the Shop

Once you have your data, the rest is simple: set filters, compare, order. The best way to start is with the overview Tires. For a quick start depending on the season, you can also go directly to Summer tires – new or Winter tires – new.

Common Mistakes When Determining Tire Size

• Confusing inches with width (16 inches is not 205 mm)
• Ignoring the index (e.g., "it'll be fine" – better not)
• Not observing summer/winter approvals (especially for all-season/winter in Bavaria)

Mini-FAQ

Can I just take a different size if it's cheaper?

Only if it's approved for your vehicle. Always check the vehicle approvals and registrations for this.

What does the DOT number mean?

The DOT number shows you the production week and year. This helps to estimate the age of the tire.

Conclusion: Determine Tire Size and Then Order Online Safely

If you read the tire size carefully, determining tire size is no longer an obstacle. You save time, avoid wrong purchases, and can conveniently order online in Landshut. Start now in Tires and filter specifically by your size.