How to check whether the rims of alloy bike V brakes are damaged, worn or deformed?

The steps to check for damage, wear, or deformation of the alloy bike V brake are as follows:
Check the surface of the wheel rim: Observe whether the surface of the wheel rim is smooth and free from scratches, dents, cracks, and other damages. If there is damage, it may affect the strength and braking performance of the wheels.
Check the wear of the wheel rims: The wear of the V-brake wheel rims usually occurs at the brake edge, as this is where the brake pads come into contact. Check the brake edges for wear. If the wear is severe, it may be necessary to replace the wheels.
Check the deformation of the wheels: If the wheels are deformed, it may affect the balance and braking performance of the bicycle. Check if the wheels are twisted or bent on a horizontal plane. If deformation is found, it is best to have a professional repair or replacement.
Check the installation of the wheel rim: Ensure that the wheel rim is installed correctly and there is no looseness or detachment. If it is found that the installation is not tight, it should be adjusted or replaced in a timely manner.
In short, it is necessary to regularly check the condition of the V-brake wheels of alloy bicycles, and promptly detect and handle any damage, wear, or deformation issues to ensure the safety performance of the bicycle.

You can also consider the following suggestions to improve your inspection process:
Check the knocking sound and smooth rotation of the wheel rim: Gently tap the wheel rim with your fingers to listen for any hollow sounds, which may indicate damage inside the wheel rim. Then, rotate the wheel rim to ensure it rotates smoothly without swaying or shaking.
Measure the size of the wheel rim: Use a measuring tool to measure the diameter of the wheel rim to ensure that it meets the standard dimensions specified by the manufacturer. If the size is incorrect, it may affect braking performance and cycling stability.
Check the nuts and bolts of the wheel rim: Ensure that the nuts and bolts of the wheel rim are tight and not loose or missing. Regularly checking and tightening the nuts and bolts on the wheel rims can prevent accidents from occurring.
Understand specific manufacturer's recommendations: Different bicycle brands and models may have different inspection recommendations and guidelines. Refer to your bicycle's user manual or visit the manufacturer's official website for their specific advice and guidance.
Seeking professional assistance: If you are unsure how to conduct a detailed wheel inspection or if any issues are found, it is best to have an experienced bicycle technician conduct the inspection and repair. They can provide accurate diagnosis and repair recommendations.