Is it necessary to replace a deformed inner rim?
3 Answers
The inner rim deformation can be repaired, but replacement is recommended. Here are some details: 1. Rim correction: The stress point of the rim is the spoke. If the spoke is not bent or deformed, it does not affect usage. The deformed rim can be corrected. Rim deformation repair uses a correction machine to adjust the vertical and lateral wobble values within the standard range. 2. Correction method: First, pad the dented area with sponge or cloth, then hammer the dented part flat and apply body filler (putty). Find the roundness on the rim, smooth out uneven areas, and roughen the surface with sandpaper to prepare for painting. Let the putty dry completely, then repaint the entire rim. After drying, a 'new' rim will be reborn. 3. Influencing factors: Rim deformation is caused by driving too fast over potholes. It is advised that car owners take care of their rims, slow down when encountering potholes, and avoid excessive speed in daily driving. If the rim edge is deformed, it is recommended to repair it promptly to avoid affecting usage.
Last time I encountered the problem of wheel rim deformation, it took a lot of effort to deal with. Wheel rim deformation is not as simple as surface scratches; it directly affects the vehicle's driving stability. The wheel rim is like the skeleton of a foot—if the skeleton is crooked, the body will definitely feel uncomfortable. Deformation can compromise the tire's seal, leading to air leaks, and cause abnormal vibrations at high speeds, with the steering wheel also vibrating noticeably. Especially if the front wheel is deformed, braking performance can be compromised. I consulted an experienced mechanic, who said that if the deformation exceeds 1 millimeter, the reliability of the repair becomes questionable. Nowadays, many wheel rims are made of aluminum alloy, and forcing them back into shape might cause cracks. So, my advice is that even if it's repaired, there may still be hidden safety risks. Unless the deformation is extremely minor, replacing the wheel rim outright is the most worry-free and safest approach. Driving safety is not something to compromise on.
To be honest, I used to struggle with this issue too. Deformation on the inner side of a wheel rim is no small matter—it creates continuous vibrations that affect driving comfort. Once, after hitting a pothole, my car's rim got deformed, and the steering wheel would shake like crazy once speed exceeded 80 km/h. A friend helped measure the wheel balance data, and if the deviation exceeds 25 grams, regular weight adjustments won’t fix it. It’s even worse with aluminum alloy rims—heat-treated materials can develop metal fatigue if forcibly repaired. I did some cost analysis: a used rim costs around 200-300 RMB, while a repair runs about 100 RMB with no guaranteed results. It’s often better to just find a used replacement part. However, for very minor deformations, professional heat straightening equipment might work, but after repair, it’s best to check roundness with a dial indicator—if the error exceeds 0.5 mm, don’t settle for it.
