The John Deere 7715 tractor tire size is front 16.9-30 and the rear is 20.8-42.
Front tire16.9-30
Rear tire20.8-42
Front/rear setupDifferent front and rear tire sizes
Rim diameter30 in front, 42 in rear
Ballast50 gal
John Deere 7715 Tire Size Details
Front tire size
16.9-30
Rear tire size
20.8-42
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
14.9-30, 18.4-42
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
16.9 in
Rear section width
20.8 in
Front rim diameter
30 in
Rear rim diameter
42 in
Loaded rear tire ballast / fluid capacity
50 gal
Tire Size Comparison Chart
Front rim diameter comparison
This model
30 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
42 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 7715 Extra Tire Notes
Tire size note
The John Deere 7715 uses different front and rear tire sizes in this data: front 16.9-30 (30 in rim, 16.9 in width) and rear 20.8-42 (42 in rim, 20.8 in width)
Ballast note
For the John Deere 7715 rear 20.8-42 tires, the ballast figure captured in the answer is 50 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
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.
