- 5 PSI (0.344 atm) or up to a maximum of 8 PSI (0.551 atm) with turf tires.
Rear tires:
- 10 PSI (0.689 atm) or up to a maximum of 20 PSI (1.379 atm) with regular tires; use 4 or 5 PSI (0.2758/ 0.3445atm) with turf tires or when carrying a maximum load.