The John Deere 20C tractor tire size is front 7.00-12 and the rear is 6.5/80×12.
Front tire7.00-12
Rear tire6.5/80×12
Front/rear setupDifferent front and rear tire sizes
Tire pressure35 PSI, 18 PSI
Rim diameter12 in front/rear
John Deere 20C Tire Size Details
Front tire size
7.00-12
Rear tire size
6.5/80×12
Front/rear setup
Different front and rear tire sizes
R1 ag tire size
6.0-14, 9.5-24
Front tire construction
Bias/imperial tire
Rear tire construction
Low-profile implement/tractor tire
Front section width
7 in
Rear section width
6.5 in
Rear aspect ratio
80%
Front rim diameter
12 in
Rear rim diameter
12 in
Tire pressure
35 PSI, 18 PSI
Tire Size Comparison Chart
Front rim diameter comparison
This model
12 in
Average
17.1 in
Low
4 in
High
50 in
Rear rim diameter comparison
This model
12 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 20C Extra Tire Notes
Tire size note
The John Deere 20C uses different front and rear tire sizes in this data: front 7.00-12 (12 in rim, 7 in width) and rear 6.5/80×12 (12 in rim, 6.5 in width)
Pressure note
For the John Deere 20C with front 7.00-12 and rear 6.5/80×12 tires, the pressure values captured in the answer are 35 PSI, 18 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.
