Does a cut on the tire require replacement?

[MacJuliette]

It is recommended to replace the tire. You can feel the depth of the "wound" with your hand. Generally speaking, the rubber layer of a tire has a certain thickness, but for the sidewall of the tire, this is a weak spot. The rubber thickness here is not enough to provide sufficient and effective protection for the tire. If you can see a cut on the sidewall of the tire with the naked eye, one thing is certain—the scratch is no longer shallow and may even compromise the structure of the tire. Additional tips: 1. Pay attention to tire pressure: Both excessively high and low tire pressure can cause abnormal wear and shorten the tire's lifespan. During the harsh winter and summer seasons, you can adjust the tire pressure regularly based on recommendations from maintenance service stations. 2. Avoid sudden acceleration when driving: A sudden start from a stationary state causes intense friction between the tire and the road surface, accelerating tread wear. 3. Reduce emergency braking: Emergency braking worsens localized tread wear and can easily lead to tire bulges or delamination. It is advisable to use coasting to slow down more often and minimize the use of braking, especially emergency braking.