Quick answer:
The Kubota B1-14 tractor tire size is front 4.50-10 and rear 8-16. Other tire setup data found for this model includes Front 4.50-10, Rear 8-18, so confirm the wheel option before ordering.
Front tire4.50-10
Rear tire8-16
Front/rear setupDifferent front and rear tire sizes
Rim diameter10 in front, 16 in rear
Other setup foundFront 4.50-10, Rear 8-18
Kubota B1-14 Tire Size Details
| Front tire size | 4.50-10 |
|---|---|
| Rear tire size | 8-16 |
| Front/rear setup | Different front and rear tire sizes |
| Other tire setup found | Front 4.50-10, Rear 8-18 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 4.5 in |
| Rear section width | 8 in |
| Front rim diameter | 10 in |
| Rear rim diameter | 16 in |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
Benchmarks use typical low, average and high rim diameters for the sub-compact / compact tractor category, not scraped low/high outliers.
Kubota B1-14 Extra Tire Notes
| Tire size note | The Kubota B1-14 uses different front and rear tire sizes in this data: front 4.50-10 (10 in rim, 4.5 in width) and rear 8-16 (16 in rim, 8 in width) |
|---|---|
| Multiple setup note | This data has more than one tire setup for the Kubota B1-14. The main front/rear listing is Front 4.50-10, Rear 8-16. Other setup data found: Front 4.50-10, Rear 8-18. 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.



