Product Features: Operating Pressure: 87-116 PSI (0.6-0.8 Mpa) Maximum Pressure: 145 PSI (1 MPa) ATV Tire: 40 PSI Lawn Tractor Tre: 40-50 PSI (2.7-3.4 bar) Tractor Tire: 100-120(6.8-8.2 bar) Large Tractor Tire: 120 PSI (8.2 bar) Car Tire: 50-60 PSI (3.4-4.1 bar) Truck Tire: 100-130 PSI (6.8-8.2 bar) Product Details: .