The John Deere 6900 tractor tire size is front 16.9R28 and the rear is 20.8R38.
Front tire16.9R28
Rear tire20.8R38
Front/rear setupDifferent front and rear tire sizes
Rim diameter28 in front, 38 in rear
John Deere 6900 Tire Size Details
Front tire size
16.9R28
Rear tire size
20.8R38
Front/rear setup
Different front and rear tire sizes
Front tire construction
Imperial radial
Rear tire construction
Imperial radial
Front section width
16.9 in
Rear section width
20.8 in
Front rim diameter
28 in
Rear rim diameter
38 in
Tire Size Comparison Chart
Front rim diameter comparison
This model
28 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
38 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 6900 Extra Tire Notes
Tire size note
The John Deere 6900 uses different front and rear tire sizes in this data: front 16.9R28 (28 in rim, 16.9 in width) and rear 20.8R38 (38 in rim, 20.8 in width)
Front/rear matching note
The John Deere 6900 data shows front 16.9R28 and rear 20.8R38. 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.
