The Kubota M90 tractor tire size is front 7.50-16 and rear 13.9-36. Other tire setup data found for this model includes Front 12.4-24, Rear 18.4-30; Front 7.50-18, Rear 12.4-24; Front 7.50-16, Rear 14.9-28; plus 1 more, so confirm the wheel option before ordering.
Front tire7.50-16
Rear tire13.9-36
Front/rear setupDifferent front and rear tire sizes
Tire pressure30 PSI, 20 PSI
Rim diameter16 in front, 36 in rear
Ballast40 gal
Other setup foundFront 12.4-24, Rear 18.4-30; Front 7.50-18, Rear 12.4-24; Front 7.50-16, Rear 14.9-28; plus 1 more
Kubota M90 Tire Size Details
Front tire size
7.50-16
Rear tire size
13.9-36
Front/rear setup
Different front and rear tire sizes
Other tire setup found
Front 12.4-24, Rear 18.4-30
Replacement tire size
Front 7.50-18, Rear 12.4-24
R1 ag tire size
Front 7.50-16, Rear 14.9-28
Tire size alternatives / conversions
Front 11.2-24, Rear 18.4-34
Front tire construction
Bias/imperial tire
Rear tire construction
Bias/imperial tire
Front section width
7.5 in
Rear section width
13.9 in
Front rim diameter
16 in
Rear rim diameter
36 in
Tire pressure
30 PSI, 20 PSI
Loaded rear tire ballast / fluid capacity
40 gal
Tire Size Comparison Chart
Front rim diameter comparison
This model
16 in
Average
24 in
Low
16 in
High
38 in
Rear rim diameter comparison
This model
36 in
Average
38 in
Low
28 in
High
54 in
Benchmarks use typical low, average and high rim diameters for the utility / row-crop / large ag tractor category, not scraped low/high outliers.
Kubota M90 Extra Tire Notes
Tire size note
The Kubota M90 uses different front and rear tire sizes in this data: front 7.50-16 (16 in rim, 7.5 in width) and rear 13.9-36 (36 in rim, 13.9 in width)
Multiple setup note
This data has more than one tire setup for the Kubota M90. The main front/rear listing is Front 7.50-16, Rear 13.9-36. Other setup data found: Front 12.4-24, Rear 18.4-30; Front 7.50-18, Rear 12.4-24; Front 7.50-16, Rear 14.9-28; plus 1 more. This usually means different wheel, axle, turf/ag/industrial, or market options rather than one universal tire size
Pressure note
For the Kubota M90 with front 7.50-16 and rear 13.9-36 tires, the pressure values captured in the answer are 30 PSI, 20 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the Kubota M90 rear 13.9-36 tires, the ballast figure captured in the answer is 40 gal. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
Front/rear matching note
The Kubota M90 data shows front 7.50-16 and rear 13.9-36. 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 kubotausa.com website for official information.
