Quick answer:
The Kubota M7-132 tractor tire size is front 540/65R28 and rear 650/65R38.
Front tire540/65R28
Rear tire650/65R38
Front/rear setupDifferent front and rear tire sizes
Tire pressure30 PSI, 20 PSI
Rim diameter28 in front, 38 in rear
Ballast35 gal
Kubota M7-132 Tire Size Details
| Front tire size | 540/65R28 |
|---|---|
| Rear tire size | 650/65R38 |
| Front/rear setup | Different front and rear tire sizes |
| Front tire construction | Metric radial |
| Rear tire construction | Metric radial |
| Front section width | 540 mm |
| Rear section width | 650 mm |
| Front aspect ratio | 65% |
| Rear aspect ratio | 65% |
| Front rim diameter | 28 in |
| Rear rim diameter | 38 in |
| Approx front overall diameter | about 55.6 in |
| Approx rear overall diameter | about 71.3 in |
| Tire pressure | 30 PSI, 20 PSI |
| Loaded rear tire ballast / fluid capacity | 35 gal |
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 M7-132 Extra Tire Notes
| Tire size note | The Kubota M7-132 uses different front and rear tire sizes in this data: front 540/65R28 (28 in rim, 540 mm width) and rear 650/65R38 (38 in rim, 650 mm width) |
|---|---|
| Pressure note | For the Kubota M7-132 with front 540/65R28 and rear 650/65R38 tires, the pressure values captured in the answer are 30 PSI, 20 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Ballast note | For the Kubota M7-132 rear 650/65R38 tires, the ballast figure captured in the answer is 35 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type |
| Front/rear matching note | The Kubota M7-132 data shows front 540/65R28 and rear 650/65R38. When changing either size, front/rear rolling circumference and lead/lag need to stay within the correct range |
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.




