The John Deere 6170R tractor tire size is front 420/90R30 and the rear is 710/70R38.
Front tire420/90R30
Rear tire710/70R38
Front/rear setupDifferent front and rear tire sizes
Rim diameter30 in front, 38 in rear
John Deere 6170R Tire Size Details
Front tire size
420/90R30
Rear tire size
710/70R38
Front/rear setup
Different front and rear tire sizes
Original factory tire size
Front 420/90R30, Rear 480/80R46
Replacement tire size
Front 420/90R30, Rear 480/80R46
R1 ag tire size
420/90R30, 480/80R46
Front tire construction
Metric radial
Rear tire construction
Metric radial
Front section width
420 mm
Rear section width
710 mm
Front aspect ratio
90%
Rear aspect ratio
70%
Front rim diameter
30 in
Rear rim diameter
38 in
Approx front overall diameter
about 59.8 in
Approx rear overall diameter
about 77.1 in
Tire size alternatives / conversions
600/65R38, 480/65R28
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
38 in
Average
25.5 in
Low
0 in
High
50 in
John Deere 6170R Extra Tire Notes
Tire size note
The John Deere 6170R uses different front and rear tire sizes in this data: front 420/90R30 (30 in rim, 420 mm width) and rear 710/70R38 (38 in rim, 710 mm width)
Front/rear matching note
The John Deere 6170R data shows front 420/90R30 and rear 710/70R38. 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.
