How Often Should Run-Flat Tires Be Replaced?
2 Answers
Run-flat tires should be replaced approximately every 40,000 to 50,000 kilometers. Run-flat tires, also known as puncture-proof tires, are abbreviated as RSC in English. Their working principle is: when tire pressure begins to drop, the RSC immediately alerts the driver. Even if the tire pressure drops to zero, the RSC can still ensure the tire remains securely fixed to the rim, allowing the vehicle to continue driving for a certain distance. Run-flat tires are circular elastic rubber products installed on various vehicles or machinery to roll on the ground. Mounted on metal rims, they support the vehicle body, absorb external shocks, maintain contact with the road surface, and ensure the vehicle's driving performance.
I remember once when I was driving on a trip, the tire suddenly went flat. Fortunately, it was a run-flat tire, so I could still drive a distance to the repair shop. Run-flat tires usually need to be replaced every 5 to 6 years or after about 50,000 kilometers, depending on how you drive. I mostly drive in the city, so my tires wear out faster. I frequently check the tread depth of the tires—if they’re worn smooth, it’s time to replace them immediately. Over time, the rubber also ages and becomes brittle, especially when parked in high summer temperatures, which can cause cracks on the tire sidewalls. For safety, I recommend getting a professional inspection every six months—don’t skimp and risk an accident, as a tire blowout on the highway is no joke. Additionally, if you frequently drive on highways or rough mountain roads, it’s safer to shorten the replacement interval to 4 years or 40,000 kilometers.
