How thick is the tire groove to the innermost part?

[EmeryRose]

Generally speaking, the thickness from the tire groove to the innermost part is about 4mm. Of course, depending on the brand and model of the tire, the thickness from the tire groove to the innermost part may vary. For specific details, you can check the official website of the tire manufacturer or visit a tire shop. Here is some relevant information: Drainage Grooves: The grooves on the tire are drainage grooves, mainly designed to expel accumulated water from the tire during high-speed driving, preventing the car from skidding or losing control due to water accumulation on the tires, thereby further enhancing driving safety. Impact of Too Many Drainage Grooves: If there are too many drainage grooves, it can also affect the car's driving performance. Excessive drainage grooves reduce the contact area between the tire and the ground, decreasing the tire's friction. This can make the car less stable at high speeds and prone to safety accidents. Generally, car tires have 3 or 4 drainage grooves, but the number and depth of these grooves may vary depending on the tire brand and model.