Agricultural tyres influence traction, compaction, ride, fuel use and the machine's ability to carry load at the required speed. A replacement should therefore be specified from the machine, axle, rim and work cycle—not chosen only because the nominal size appears familiar.
Thai Tire's catalogue includes selected agricultural and forestry references. Availability and application data must be confirmed for each enquiry.
Reviewed 2026-08-26 · For wholesale planning; final specifications and import requirements must be confirmed for each order.
Start with machine and current-fitment evidence
Provide machine make/model, axle or implement position, current tyre size and full sidewall photographs, rim details, single or dual configuration, tube requirement, load including mounted equipment and travel speed. Explain road travel versus field work and the surfaces involved.
For driven axles, replacement can affect rolling circumference and mechanical lead/lag relationships. Do not mix sizes or constructions without qualified approval. For implements, load changes between field and transport may control the requirement.
Match construction and tread to the work
Radial and bias
Radial and bias constructions flex and carry load differently. The best choice depends on machine design, speed, load, field work, road use and economic goals. Use manufacturer inflation and load guidance.
Flotation
Flotation tyres are selected to distribute load over a larger footprint in suitable applications. Confirm clearance, rim, load and speed rather than treating width alone as soil protection.
Forestry
Forestry service can introduce stumps, rocks, cuts and heavy loads. Construction, protection and tread must be matched to the machine and terrain.
Load and inflation belong together
Tyre capacity depends on the approved inflation for the load and service. Use an accurate gauge and the current tyre/manufacturer information. Field and road operations may have different requirements, but any pressure-management procedure must stay within product, rim and machine limits.
Record actual axle loads where possible. Guessing from machine brochure weight can miss implements, ballast, tanks and carried material.
Build an agricultural tyre RFQ
Machine
Make/model, axle or implement position and configuration.
Fitment
Current size, rim, tube status, clearance and any paired tyres.
Work
Crop, soil, terrain, load, speed, road/field ratio and seasonal window.
Commercial
Quantity, acceptable brands, destination, required date and document needs.
Browse the agricultural tyre catalogue and send the closest references with the complete application details.
Frequently asked questions
Are radial agricultural tyres always better than bias tyres?
Not universally. Machine, load, speed, soil, road use, durability needs and total cost determine the suitable construction.
Can I change tractor tyre size?
Size changes can affect rim fit, clearance, gearing and front/rear rolling relationship. Obtain qualified approval using machine and tyre data.
What photos should I send?
Send the full sidewall, tread, rim, machine, axle position and any clearance or damage concern, together with written load and use information.
Send a quote request that can be priced properly
Include your tyre sizes, quantities, preferred brands or quality tier, destination port and target timing. Thai Tire can then confirm current availability, a practical size mix and the next export step.
