The John Deere R tractor tire size is front 7.50-18 and the rear is 14-34.
Front tire7.50-18
Rear tire14-34
Front/rear setupDifferent front and rear tire sizes
Rim diameter18 in front, 34 in rear
John Deere R Tire Size Details
Front tire size
7.50-18
Rear tire size
14-34
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
7.50-18, 14-34, 15-34
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
7.5 in
Rear section width
14 in
Front rim diameter
18 in
Rear rim diameter
34 in
Tire Size Comparison Chart
Front rim diameter comparison
This model
18 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
34 in
Average
25.5 in
Low
0 in
High
50 in
John Deere R Extra Tire Notes
Tire size note
The John Deere R uses different front and rear tire sizes in this data: front 7.50-18 (18 in rim, 7.5 in width) and rear 14-34 (34 in rim, 14 in width)
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.
