Can I Change to 825 Without Replacing the Steel Rim?

[MacJuniper]

The depth is different, so it cannot be replaced. The most basic requirement for tire upgrades is that the tire diameter should be equal or have a minimal difference (not exceeding 1% more or 2% less than the original). The original tire diameter is 750mm, and you want to change to 825mm. (825-750)/825=9%, which far exceeds the diameter requirement. Tire upgrades are not related to the rim diameter but to the total diameter. Here is more related information: Introduction to tires: The international code for radial tires is "R," commonly known as "steel-belted tires." The arrangement of the cords in the radial tire carcass is different from that in bias tires. The cords in radial tires are not arranged in a crisscross pattern but are nearly parallel to the tire cross-section, resembling the Earth's meridians. The cord angle is small, usually 0°, and there are no intersecting points between the carcass cords. When the tire is in motion, the stress around the crown increases, causing axial extension and radial cracks in the tire carcass.