The Kubota BX2680 tractor tire size is front 18×8.5-10 and rear 26×12-12.
Front tire18×8.5-10
Rear tire26×12-12
Front/rear setupDifferent front and rear tire sizes
Tire pressure22 PSI, 18 PSI
Rim diameter10 in front, 12 in rear
Ballast10 gal, 83 lb
Kubota BX2680 Tire Size Details
Front tire size
18×8.5-10
Rear tire size
26×12-12
Front/rear setup
Different front and rear tire sizes
Front tire construction
Flotation/implement tire
Rear tire construction
Flotation/implement tire
Front section width
8.5 in
Rear section width
12 in
Front rim diameter
10 in
Rear rim diameter
12 in
Approx front overall diameter
about 18 in
Approx rear overall diameter
about 26 in
Tire pressure
22 PSI, 18 PSI
Loaded rear tire ballast / fluid capacity
10 gal, 83 lb
Tire Size Comparison Chart
Front rim diameter comparison
This model
10 in
Average
7 in
Low
6 in
High
10 in
Rear rim diameter comparison
This model
12 in
Average
10 in
Low
8 in
High
12 in
Benchmarks use typical low, average and high rim diameters for the lawn/garden tractor category, not scraped low/high outliers.
Kubota BX2680 Extra Tire Notes
Tire size note
The Kubota BX2680 uses different front and rear tire sizes in this data: front 18×8.5-10 (10 in rim, 8.5 in width) and rear 26×12-12 (12 in rim, 12 in width)
Pressure note
For the Kubota BX2680 with front 18×8.5-10 and rear 26×12-12 tires, the pressure values captured in the answer are 22 PSI, 18 PSI. Tire pressure is load-dependent, so use this as a reference value rather than a universal setting
Ballast note
For the Kubota BX2680 rear 26×12-12 tires, the ballast figure captured in the answer is 10 gal, 83 lb. Liquid ballast capacity can change by tire brand, fill percentage, wheel setup and ballast fluid type
Front/rear matching note
The Kubota BX2680 data shows front 18×8.5-10 and rear 26×12-12. 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.
