The Case IH 685 tractor is listed with a 7.50-16 front tire and a 16.9-30 rear tire.
Case IH 685 Tire Size Chart
Configuration
Tire size
Agricultural front
7.50-16
Agricultural rear
16.9-30
Recommended tire pressure
The recommended tire pressure for a Case IH 685 is typically around 12-15 psi for the rear tires; depending on the load and conditions. Always check the specific requirements for your tractor model and usage to ensure optimal performance.
Before buying replacement tires
Match the complete sidewall size, rim diameter, axle position, 2WD/4WD configuration and tire type before ordering. On driven front axles, changing overall tire diameter can upset the required front-to-rear rolling ratio.
Tire Pressure
Recommended tire pressure: The recommended tire pressure for a Case IH 685 is typically around 12-15 psi for the rear tires; depending on the load and conditions. Always check the specific requirements for your tractor model and usage to ensure optimal performance.
Pressure warning: Confirm the correct pressure in the official operator’s manual and the tire manufacturer’s load-and-pressure chart before inflation.
Wheelbase and Ground Clearance
Wheelbase
88 inches 223 cm 85.2 inches 216 cm
Ground clearance
11.8 inches 29 cm
Specification disclaimer
These specifications are provided as a reference and may vary by production year, country, axle, wheel package and previous tire changes. Before purchasing, fitting or inflating tires, confirm the specifications using the Case IH official U.S. website, the official operator’s manual and the markings on the tires currently fitted.
