The John Deere GX85 tractor tire size is front 11×4.00-5 and the rear is 16×6.50-8.
Front tire11×4.00-5
Rear tire16×6.50-8
Front/rear setupDifferent front and rear tire sizes
Rim diameter5 in front, 8 in rear
John Deere GX85 Tire Size Details
Front tire size
11×4.00-5
Rear tire size
16×6.50-8
Front/rear setup
Different front and rear tire sizes
Front tire construction
Flotation/implement tire
Rear tire construction
Flotation/implement tire
Front section width
4 in
Rear section width
6.5 in
Front rim diameter
5 in
Rear rim diameter
8 in
Approx front overall diameter
about 11 in
Approx rear overall diameter
about 16 in
Tire size alternatives / conversions
18×8.50-15, 16×6.50-15, 24×12.00-15, 26×12.00-15
Tire Size Comparison Chart
Front rim diameter comparison
This model
5 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 GX85 Extra Tire Notes
Tire size note
The John Deere GX85 uses different front and rear tire sizes in this data: front 11×4.00-5 (5 in rim, 4 in width) and rear 16×6.50-8 (8 in rim, 6.5 in width)
Front/rear matching note
The John Deere GX85 data shows front 11×4.00-5 and rear 16×6.50-8. 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.
