Quick answer:
The Kubota MR77 tractor tire size is front 9.5-24 and rear 16.9-30. Other tire setup data found for this model includes Front 7.50-16, Rear 16.9-30; Front 12.4-24, Rear 8-16, so confirm the wheel option before ordering.
Front tire9.5-24
Rear tire16.9-30
Front/rear setupDifferent front and rear tire sizes
Tire pressure26 PSI, 18 PSI
Rim diameter24 in front, 30 in rear
Ballast55 gal
Other setup foundFront 7.50-16, Rear 16.9-30; Front 12.4-24, Rear 8-16
Kubota MR77 Tire Size Details
| Front tire size | 9.5-24 |
|---|---|
| Rear tire size | 16.9-30 |
| Front/rear setup | Different front and rear tire sizes |
| Replacement tire size | Front 7.50-16, Rear 16.9-30 |
| R1 ag tire size | Front 12.4-24, Rear 8-16 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 9.5 in |
| Rear section width | 16.9 in |
| Front rim diameter | 24 in |
| Rear rim diameter | 30 in |
| Tire pressure | 26 PSI, 18 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 MR77 Extra Tire Notes
| Tire size note | The Kubota MR77 uses different front and rear tire sizes in this data: front 9.5-24 (24 in rim, 9.5 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 MR77. The main front/rear listing is Front 9.5-24, Rear 16.9-30. Other setup data found: Front 7.50-16, Rear 16.9-30; Front 12.4-24, Rear 8-16. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
| Pressure note | For the Kubota MR77 with front 9.5-24 and rear 16.9-30 tires, the pressure values captured in the answer are 26 PSI, 18 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Ballast note | For the Kubota MR77 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.






