What Causes Bulges in Car Wheels?
2 Answers
Bulges in car wheels are caused by the breakage of the tire cord fabric layer in the sidewall, which allows the internal air to escape from the broken cords, resulting in the thin rubber supporting the bulge. The reasons for tire cord breakage are: 1. Wheel quality issues; 2. Impact to the wheel; 3. Insufficient tire pressure. A wheel consists of a rim and spokes. The rim is the component that mounts and supports the tire on the wheel, while the spokes are the supporting components between the axle and the rim. Tire maintenance methods include: 1. Regularly checking tire pressure; 2. Paying attention to tire wear indicators; 3. Noting the expiration date of tires; 4. Adhering to the schedule for four-wheel rotation.
I've been driving for over ten years and have encountered tire bulges several times, mainly caused by hitting large potholes on highways when not paying attention to the road surface. Simply put, a tire bulge means internal separation or broken cord layers, with the outer rubber bulging out. There are quite a few common causes: strong impacts to the tire sidewall, like hitting curbs or the edges of manhole covers; excessively high or low tire pressure making the tire unable to withstand the stress; overloading the vehicle puts extra strain on the tires; aging tires with brittle rubber are more prone to problems in hot weather. I've even seen new tires bulge, possibly due to quality issues. If you notice a bulge, replace the tire immediately because it can blow out at any moment, especially at high speeds. My advice is to stay vigilant while driving, slow down in advance when approaching rough areas, and regularly check tire pressure and sidewall condition to significantly reduce the risk.
