Quick answer:
The John Deere 1545 Series II tractor tire size is front 23×12-12 and the rear is 20×10-10.
Front tire23×12-12
Rear tire20×10-10
Front/rear setupDifferent front and rear tire sizes
Tire pressure12 PSI, 10 PSI
Rim diameter12 in front, 10 in rear
John Deere 1545 Series II Tire Size Details
| Front tire size | 23×12-12 |
|---|---|
| Rear tire size | 20×10-10 |
| Front/rear setup | Different front and rear tire sizes |
| Original factory tire size | Front 26×12-12, Rear 20×10-10 |
| R1 ag tire size | 26×12-12, 20×10-10 |
| Front tire construction | Flotation/implement tire |
| Rear tire construction | Flotation/implement tire |
| Front section width | 12 in |
| Rear section width | 10 in |
| Front rim diameter | 12 in |
| Rear rim diameter | 10 in |
| Approx front overall diameter | about 23 in |
| Approx rear overall diameter | about 20 in |
| Tire pressure | 12 PSI, 10 PSI |
Tire Size Comparison Chart
Front rim diameter comparison
Rear rim diameter comparison
John Deere 1545 Series II Extra Tire Notes
| Tire size note | The John Deere 1545 Series II uses different front and rear tire sizes in this data: front 23×12-12 (12 in rim, 12 in width) and rear 20×10-10 (10 in rim, 10 in width) |
|---|---|
| Pressure note | For the John Deere 1545 Series II with front 23×12-12 and rear 20×10-10 tires, the pressure values captured in the answer are 12 PSI, 10 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting |
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.







