Quick answer:
The Kubota M8560 tractor tire size is front 7.50-18 and rear 16.9-30. Other tire setup data found for this model includes Front 11.2-24, Rear 18.4-28; Front 16.9-30, Rear 11.2-24, so confirm the wheel option before ordering.
Front tire7.50-18
Rear tire16.9-30
Front/rear setupDifferent front and rear tire sizes
Tire pressure22 PSI, 40 PSI
Rim diameter18 in front, 30 in rear
Ballast55 gal
Other setup foundFront 11.2-24, Rear 18.4-28; Front 16.9-30, Rear 11.2-24
Kubota M8560 Tire Size Details
| Front tire size | 7.50-18 |
|---|---|
| Rear tire size | 16.9-30 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 11.2-24, Rear 18.4-28 |
| Tire size alternatives / conversions | Front 16.9-30, Rear 11.2-24 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 7.5 in |
| Rear section width | 16.9 in |
| Front rim diameter | 18 in |
| Rear rim diameter | 30 in |
| Tire pressure | 22 PSI, 40 PSI |
| Loaded rear tire ballast / fluid capacity | 55 gal |
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 M8560 Extra Tire Notes
| Tire size note | The Kubota M8560 uses different front and rear tire sizes in this data: front 7.50-18 (18 in rim, 7.5 in width) and rear 16.9-30 (30 in rim, 16.9 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota M8560. The main front/rear listing is Front 7.50-18, Rear 16.9-30. Other setup data found: Front 11.2-24, Rear 18.4-28; Front 16.9-30, Rear 11.2-24. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
| Pressure note | For the Kubota M8560 with front 7.50-18 and rear 16.9-30 tires, the pressure values captured in the answer are 22 PSI, 40 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Ballast note | For the Kubota M8560 rear 16.9-30 tires, the ballast figure captured in the answer is 55 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type |
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.






