Decoding Agricultural Tire Sizes: 18.4-26 Explained

Simplifying Agricultural Spec Sheets

Agricultural tires can often appear intimidating to the uninitiated due to their unique sizing formats and technical designations. However, understanding the basic nomenclature is essential for any wholesaler who serves the farming sector. For example, the common designation '18.4-26' tells a very specific story about the tire's construction and intended application.

What the Numbers Mean

Breaking down the specifications is straightforward once you know the key markers:

• 18.4: This indicates the section width of the tire, measured in inches.
• - (Dash): This symbol signifies a bias-ply construction. If you were to see an 'R' instead, it would indicate radial construction, which offers different performance characteristics.
• 26: This number represents the rim diameter, measured in inches.

Important Considerations for Agricultural Orders:

• Ply Rating: Always verify the ply rating, as this dictates the load-bearing capacity for heavy farming implements and equipment.
• Tread Pattern: Ensure the tread matches the soil type (soft mud vs. hard ground) required by your client.

Understanding these basics ensures you order the correct replacements for your agricultural clients, preventing costly returns and ensuring customer satisfaction. At T.K.M. Auto Tire, we specialize in sourcing a wide range of tires, including specialized agricultural equipment. If you ever have a question regarding a specific tire size or load index, our sales team is ready to verify the specifications against manufacturer data. Keep this guide handy to better serve your farming community with confidence.