What is the max road grade that a hmmwv ecv can climb?

The High Mobility Multipurpose Wheeled Vehicle (HMMWV), specifically the Expanded Capacity Vehicle (ECV) variant, is designed to handle challenging terrains and can typically ascend grades of up to 60%. This capability allows it to traverse steep hills and rough landscapes, making it suitable for various military operations. However, actual performance can vary based on load, conditions, and specific configurations.