Quick answer:
The Kubota M115 tractor tire size is front 420/70R24 and rear 14.9-28. Other tire setup data found for this model includes Front 7.00-12, Rear 14.9-28, so confirm the wheel option before ordering.
Front tire420/70R24
Rear tire14.9-28
Front/rear setupDifferent front and rear tire sizes
Rim diameter24 in front, 28 in rear
Other setup foundFront 7.00-12, Rear 14.9-28
Kubota M115 Tire Size Details
| Front tire size | 420/70R24 |
|---|---|
| Rear tire size | 14.9-28 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 7.00-12, Rear 14.9-28 |
| Front tire construction | Metric radial |
| Rear tire construction | Bias/imperial tire |
| Front section width | 420 mm |
| Rear section width | 14.9 in |
| Front aspect ratio | 70% |
| Front rim diameter | 24 in |
| Rear rim diameter | 28 in |
| Approx front overall diameter | about 47.1 in |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
Benchmarks use typical low, average and high rim diameters for the compact / utility tractor category, not scraped low/high outliers.
Kubota M115 Extra Tire Notes
| Tire size note | The Kubota M115 uses different front and rear tire sizes in this data: front 420/70R24 (24 in rim, 420 mm width) and rear 14.9-28 (28 in rim, 14.9 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota M115. The main front/rear listing is Front 420/70R24, Rear 14.9-28. Other setup data found: Front 7.00-12, Rear 14.9-28. 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.




