Does a chunk of rubber missing from the outer side of the tire affect its use?
2 Answers
If a chunk of rubber is missing from the sidewall of the tire, it definitely cannot continue to be used. First, it's important to know that the sidewall is the weakest part of the tire, unlike the tread area which has higher protective strength. Once a chunk of rubber is missing, it's highly likely that the sidewall's cord layer has been damaged, significantly increasing the risk of a blowout. Below are some key points regarding a chunk of rubber missing from the tire: 1. During tire rotation, it is prone to bending and deformation: Over time, this can cause repair materials to detach (surge phenomenon). 2. The impact of a missing chunk from the sidewall is quite significant: Therefore, it is essential to replace it promptly. Additionally, it's advisable to inspect the tire sidewall at least once a month, as during parallel parking, even if the sidewall rubs against the curb, it can be hard to notice. Hence, regular inspections of the tire sidewall are crucial, including checking for any visible damage, bulges, punctures, aging, etc.
That day while driving, I scraped off a piece of rubber from the outer side of the tire and was worried if it would affect driving. Upon careful reflection, the tire sidewall is inherently thin. If the damage is deep enough to expose the cords, the airflow impact at high speeds could easily enlarge the crack or even cause a blowout, which is extremely dangerous. I once saw a friend get into an accident because of this, so I immediately stopped to check. Using my phone's flashlight, I inspected the wound and measured its depth—if it's less than 3mm, it might still be okay, but if it's deeper, you must replace the tire without hesitation, especially if you usually carry family members. Safety comes first; tires are the only part in contact with the road, so don't take any chances. Regular maintenance, checking tire pressure, and developing good habits to reduce roadside scrapes can all help prevent issues. Remember, if in doubt, go to a professional shop for an evaluation—don't push your luck.
