1. Overall Diameter Difference:
The overall diameter of a tire is crucial for maintaining the correct ride height, speedometer accuracy, and ground clearance. The 235/85 R16 tires have a significantly larger overall diameter compared to 245/70 R16 tires. This difference can cause issues with the vehicle's suspension, speedometer readings, and potential rubbing against the fenders or other components.
2. Speedometer Accuracy:
Replacing the tires with a different size can impact the speedometer's accuracy. The speedometer is calibrated based on the tire's revolutions per mile (RPM). The difference in tire size will result in a different RPM, causing the speedometer to provide inaccurate readings. This can lead to safety concerns, especially when driving at higher speeds.
3. Handling and Performance:
The wider 245 tires provide better stability, grip, and handling compared to the narrower 235 tires. Replacing the tires with a narrower profile may compromise the vehicle's handling characteristics and overall performance, especially during cornering and maneuvering.
4. Load Capacity and Pressure:
The 245/70 R16 tires have a higher load capacity and recommended air pressure compared to 235/85 R16 tires. Installing tires with a lower load rating can compromise the vehicle's ability to carry its rated load safely.
5. Compatibility with Wheels:
The 235/85 R16 tires may not be compatible with the vehicle's existing wheels. The rim width and offset may not be suitable for the wider tires, leading to potential issues with fitment, tire bead seating, and safety.
Therefore, it is strongly recommended to consult with a tire professional or refer to the vehicle's owner's manual to determine the appropriate tire sizes and specifications for your vehicle. Mixing tire sizes can have significant implications for safety, performance, and compliance with vehicle manufacturer recommendations.
