Quick answer:
The Kubota M105GX-III tractor tire size is front 380/70R24 and rear 520/70R34. Other tire setup data found for this model includes Front 18.4R34, Rear 13.6R24, so confirm the wheel option before ordering.
Front tire380/70R24
Rear tire520/70R34
Front/rear setupDifferent front and rear tire sizes
Rim diameter24 in front, 34 in rear
Other setup foundFront 18.4R34, Rear 13.6R24
Kubota M105GX-III Tire Size Details
| Front tire size | 380/70R24 |
|---|---|
| Rear tire size | 520/70R34 |
| Front/rear setup | Different front and rear tire sizes |
| R1 ag tire size | Front 18.4R34, Rear 13.6R24 |
| Front tire construction | Metric radial |
| Rear tire construction | Metric radial |
| Front section width | 380 mm |
| Rear section width | 520 mm |
| Front aspect ratio | 70% |
| Rear aspect ratio | 70% |
| Front rim diameter | 24 in |
| Rear rim diameter | 34 in |
| Approx front overall diameter | about 44.9 in |
| Approx rear overall diameter | about 62.7 in |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
Benchmarks use typical low, average and high rim diameters for the utility / row-crop / large ag tractor category, not scraped low/high outliers.
Kubota M105GX-III Extra Tire Notes
| Tire size note | The Kubota M105GX-III uses different front and rear tire sizes in this data: front 380/70R24 (24 in rim, 380 mm width) and rear 520/70R34 (34 in rim, 520 mm width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota M105GX-III. The main front/rear listing is Front 380/70R24, Rear 520/70R34. Other setup data found: Front 18.4R34, Rear 13.6R24. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
Official information note
Mistakes do happen. Tire sizes can change by year, axle, wheel/rim option, tyre brand, tread type and local market. Please check the tire sidewall, operator manual and official kubotausa.com website for official information.

