The John Deere X146R tractor tire size is front 15×6.00-6 and the rear is 18×8.5-8.
Front tire15×6.00-6
Rear tire18×8.5-8
Front/rear setupDifferent front and rear tire sizes
Tire pressure24 PSI, 44 PSI, 12 PSI, 14.1 PSI
Rim diameter6 in front, 8 in rear
John Deere X146R Tire Size Details
Front tire size
15×6.00-6
Rear tire size
18×8.5-8
Front/rear setup
Different front and rear tire sizes
Front tire construction
Flotation/implement tire
Rear tire construction
Flotation/implement tire
Front section width
6 in
Rear section width
8.5 in
Front rim diameter
6 in
Rear rim diameter
8 in
Approx front overall diameter
about 15 in
Approx rear overall diameter
about 18 in
Tire pressure
24 PSI, 44 PSI, 12 PSI, 14.1 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
6 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
8 in
Average
25.5 in
Low
0 in
High
50 in
John Deere X146R Extra Tire Notes
Tire size note
The John Deere X146R uses different front and rear tire sizes in this data: front 15×6.00-6 (6 in rim, 6 in width) and rear 18×8.5-8 (8 in rim, 8.5 in width)
Pressure note
For the John Deere X146R with front 15×6.00-6 and rear 18×8.5-8 tires, the pressure values captured in the answer are 24 PSI, 44 PSI, 12 PSI, 14.1 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.
