Quick answer:
The Kubota Bb260 tractor tire size is front 7-12 and rear 9.5-20. Other tire setup data found for this model includes Front 6-14, Rear 9.5-20; Front 11.2-16, Rear 6-12; Front 6.00-12, Rear 6.50-12, so confirm the wheel option before ordering.
Front tire7-12
Rear tire9.5-20
Front/rear setupDifferent front and rear tire sizes
Tire pressure30 PSI, 20 PSI
Rim diameter12 in front, 20 in rear
Ballast55 gal
Other setup foundFront 6-14, Rear 9.5-20; Front 11.2-16, Rear 6-12; Front 6.00-12, Rear 6.50-12
Kubota Bb260 Tire Size Details
| Front tire size | 7-12 |
|---|---|
| Rear tire size | 9.5-20 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 6-14, Rear 9.5-20 |
| R1 ag tire size | Front 11.2-16, Rear 6-12 |
| Tire size alternatives / conversions | Front 6.00-12, Rear 6.50-12 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 7 in |
| Rear section width | 9.5 in |
| Front rim diameter | 12 in |
| Rear rim diameter | 20 in |
| Tire pressure | 30 PSI, 20 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 Bb260 Extra Tire Notes
| Tire size note | The Kubota Bb260 uses different front and rear tire sizes in this data: front 7-12 (12 in rim, 7 in width) and rear 9.5-20 (20 in rim, 9.5 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota Bb260. The main front/rear listing is Front 7-12, Rear 9.5-20. Other setup data found: Front 6-14, Rear 9.5-20; Front 11.2-16, Rear 6-12; Front 6.00-12, Rear 6.50-12. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size |
| Pressure note | For the Kubota Bb260 with front 7-12 and rear 9.5-20 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 Bb260 rear 9.5-20 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 |
| Front/rear matching note | The Kubota Bb260 data shows front 7-12 and rear 9.5-20. 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.






