
If the size of the wheels remains unchanged and only the style is altered, registration is not required. Wheels have a J value, which refers to the width between the outer edges of the wheel on both sides. This value determines how wide a tire can be installed. Wheels also have an ET value, which refers to the distance between the mounting surface of the wheel and its center plane. The wheel hub is the part of the wheel where the axle is mounted, also known as the rim or steel ring. Wheel hubs are prone to accumulating dirt, and if not cleaned for a long time, they can corrode and deform, leading to potential safety hazards. Wheels can be categorized by material into steel wheels and alloy wheels. Steel wheels are relatively simple to manufacture and cost-effective, with strong resistance to metal fatigue. Alloy materials have thermal conductivity about three times that of steel, offering better heat dissipation, which can positively impact the vehicle's braking system, tires, and thermal degradation of the braking system.

I've changed my rims several times, and from personal experience, this issue is quite crucial. If you're just swapping the rim style without altering the size, generally no registration is needed, and there's no big issue. However, if you switch to larger or smaller rims, changing the size, then registration is mandatory. Different rim sizes can affect the car's balance and safety, such as making steering stiffer or causing faster tire wear, and the vehicle management office checks this strictly. Last time I modified mine and didn't register in time, it got stuck during the annual inspection. Later, I had to rush to the vehicle management office to make up for it, costing both money and time—it was quite a hassle. The registration process is simple: after changing the rims, bring your ID, original vehicle license, and modification certificate to the local vehicle management office, and update the photo. Remember, don't risk skipping registration; if caught by the police, you'll face fines and points deducted, and even insurance claims might be denied. For safety's sake, check local regulations before modifying, and don't overlook small details.

As a young car enthusiast who loves modifications, I'm super concerned about wheel changes! Getting it registered is an absolute must—it's not just unnecessary worry. If you alter the wheel size without updating the registration, you're more likely to attract police attention on the road, and if the size exceeds regulations, expect a ticket. I've seen a friend who modified without registration end up in an accident due to unstable braking, and the insurance outright refused to pay. Registering isn't hard: after the modification, just bring the car purchase invoice, ID, and other documents to the DMV for registration—it takes a few days at most. Don't skip it for convenience. Safety is even more critical—mismatched wheels can accelerate tire wear or even cause blowouts. I always remind myself: passion for cars is great, but compliance comes first.

When repairing cars, I often see owners randomly modifying their rims. If the rims are altered significantly without updating the registration, the annual inspection will likely fail, and it might even cause accidents. Any size adjustments must be filed with the vehicle management office to update the driving license—don't delay. Enlarging the rims can affect handling, making turns more difficult. I recommend taking action promptly after modification, bringing all necessary documents and proof of modification. A few simple steps can ensure safety.


