How to Determine the Age of Your Motorcycle Tires

Knowing the age of your motorcycle tires is crucial for safety and performance. Tires degrade over time, even if they look fine on the surface. Riding on old tires increases the risk of blowouts, poor traction, and accidents. This guide explains how to check the age of your motorcycle tires quickly and accurately, so you can ride with confidence.

Motorcycle tire sidewall with DOT code visible

Why Tire Age Matters

Tires are made from rubber compounds that break down over time due to exposure to heat, sunlight, and oxygen. Even if your tires have plenty of tread left, the rubber can harden and crack, reducing grip and increasing the chance of failure. Most manufacturers recommend replacing motorcycle tires every 5 to 7 years regardless of use.

Riding on tires older than this can lead to:

• Reduced traction on wet or uneven surfaces

• Increased risk of punctures and blowouts

• Poor handling and stability

• Longer stopping distances

  
  

Checking tire age is a simple step that can prevent serious accidents and keep your bike running smoothly.

Where to Find the Tire Age Code

The age of a motorcycle tire is encoded in the DOT (Department of Transportation) number stamped on the tire’s sidewall. This code is a series of letters and numbers that provide information about the tire’s manufacturer, plant, size, and production date.

Look for a string starting with the letters "DOT" followed by a combination of characters. The last four digits of this code tell you the week and year the tire was made.

For example, a DOT code ending in 2519 means the tire was manufactured in the 25th week of 2019.

How to Read the Tire Age Code

Follow these steps to decode the tire age:

1. Locate the DOT code on the sidewall of your motorcycle tire. It is usually near the rim edge.

   • The first two digits indicate the week of the year (01 to 52).

   • The last two digits indicate the year.

2. Identify the last four digits of the DOT code. These digits represent the week and year of manufacture.

3. Interpret the digits:

   
   

For example:

• DOT code ends with 1218 → Tire made in the 12th week of 2018

• DOT code ends with 4505 → Tire made in the 45th week of 2005

  
  

If the DOT code has only three digits at the end, it means the tire was made before 2000. For example, 251 means the 25th week of 1991.

Tips for Checking Tire Age Safely

• Clean the sidewall before inspecting the DOT code. Dirt and grime can hide the numbers.

• Check both tires on your motorcycle. Tires may have been replaced at different times.

• If the DOT code is worn off or unreadable, consider replacing the tire regardless of tread depth.

• Keep a record of tire ages when you replace them to track future replacements.

  
  

What to Do If Your Tires Are Old

If your tires are over 5 years old, even if they look fine, plan to replace them soon. Here are some signs that indicate immediate replacement is necessary:

• Visible cracks or dry rot on the sidewalls

• Bulges or deformities in the tire surface

• Excessive tread wear below the legal limit

• Vibration or wobbling while riding

  
  

Always choose tires that match your motorcycle’s specifications and your riding style. Consult your owner’s manual or a trusted mechanic for recommendations.

How to Extend the Life of Your Motorcycle Tires

While age is a key factor, proper care can help your tires last longer and perform better:

• Store your motorcycle in a cool, dry place away from direct sunlight.

• Avoid prolonged exposure to ozone sources like electric motors.

• Maintain correct tire pressure according to manufacturer guidelines.

• Inspect tires regularly for damage or wear.

• Avoid aggressive riding that causes excessive heat buildup.

  
  

By following these steps, you can maximize tire life and safety.

Subscribe for more member only content and be the first to know.