Quick answer:
The John Deere 790 tractor tire size is front 7.00-14 and the rear is 12.4-16.
Front tire7.00-14
Rear tire12.4-16
Front/rear setupDifferent front and rear tire sizes
Tire pressure24 PSI, 44 PSI, 20 PSI, 30 PSI
Rim diameter14 in front, 16 in rear
John Deere 790 Tire Size Details
| Front tire size | 7.00-14 |
|---|---|
| Rear tire size | 12.4-16 |
| Front/rear setup | Different front and rear tire sizes |
| Original factory tire size | Front 7.00-14, Rear 11.2-24 |
| Replacement tire size | Front 6.00-12, Rear 12.4-16 |
| R1 ag tire size | 6.00-12, 12.4-16 |
| Front tire construction | Bias/imperial tire |
| Rear tire construction | Bias/imperial tire |
| Front section width | 7 in |
| Rear section width | 12.4 in |
| Front rim diameter | 14 in |
| Rear rim diameter | 16 in |
| Tire pressure | 24 PSI, 44 PSI, 20 PSI, 30 PSI |
| Tire size alternatives / conversions | 6.00-12, 12.4-16, 25×8.50-14, 15.0-19.6 |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
John Deere 790 Extra Tire Notes
| Tire size note | The John Deere 790 uses different front and rear tire sizes in this data: front 7.00-14 (14 in rim, 7 in width) and rear 12.4-16 (16 in rim, 12.4 in width) |
|---|---|
| Pressure note | For the John Deere 790 with front 7.00-14 and rear 12.4-16 tires, the pressure values captured in the answer are 24 PSI, 44 PSI, 20 PSI, 30 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
| Front/rear matching note | The John Deere 790 data shows front 7.00-14 and rear 12.4-16. 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 deere.com website for official information.







