Tire "drum kits" could easily cause a puncture understand the "bulge" "fetal crack" and formed the basic reason to exclude a priori reason factory, our daily how to recognize and prevent it? Avoid tire drum kits, note the following two details. 1. improper tire pressure: tire pressure is too big or too small for the tire, it is bad. Tire pressure is too large, the tires will be very hard, easily broken by an external force that is abnormal; low pressure, it is easy flat tire, prone to rupture between the obstacle and the rim when hit by a hard object. The right approach: the inside of the tire in the specification or the door will be marked, usually went to the beauty shop when the car wash also allows the master to help look at the amount, or bring their own tire gauge, often self-testing. 2. poor road conditions: if you frequently go bad muddy road, especially bumpy likely to harm poor road tires, then tire resulting from crack can only be considered bad luck. Even with the manufacturer or repair shops argue tire quality problems, it can not be justified. The right way: passing holes, when shoulder onto the road with a direct walkway to ensure the angle of the vehicle with an obstacle, at right angles to the best angle. When it is at right angles to the tire surface in contact with the road shoulder. If exposure is acute, then it is likely to cause the sidewall in direct contact with an obstacle, the damage tires. In this case, the speed must be slow. Master pointed out that the owner usually free to look through the following situations, it is determined whether the tire tread by the impact and likely lead to cracking or blistering. 1. sidewall Location no impact or virtually scratch marks; whether there are cracks or dents inside 2. the tires, attention transverse dent; 3. Unfortunately, if the tire drum kits, so pay attention to the rim bulge position, if there is black marks or signs of deformation rim. Drum kits, is one of the most common problems car owners in the process, we encountered tire. It not only affects the appearance of the tire, the tire is more likely to cause an explosion, resulting in disastrous consequences. Reporters with "car Passepartout" daily complaints approximately statistics, tire problems, the "bulge" accounted for the majority. So why on earth would tire bulge? Long-term tests show that the use of tire experts: tire drum kits, 90 percent suffered due to the impact caused by the side of the tire. "In the tire rubber layer, there is a layer of a polyester cord ply and other material, which is subject to the force of the skeleton ply tire, the tire having to ensure the necessary strength and dimensional stability. Once ply damage, air pressure inside the tire will lose control, causing tire uneven force, high force portion will be highlighted. Thus, drum kits appeared. "So, how damaged ply is it? Ann constitutional name, said he and his colleagues' research has proved that the curb is the one of the "killer." "Many owners often have this kind of action: accelerated onto the sidewalk, or when parking the car stopped on the road bumps everyone knows, so do the tire damage is very great.." "Car drove curb, the tires will be deformed. The higher the speed, angle and curb the smaller the distortion is even more serious. We have tried, if the car 40 kilometers per hour, 40-70 degrees uphill angle, sideways open 15 cm high curbs, ply tires will be damaged almost 100%. In addition, if the car higher speed after some uneven road surfaces, such as pits or the like covers, tires will be subject to instantaneous strong impact because leaving ply broken. Also, if the car parked in a long time on uneven pavement, tire ply twisted long time in the state, which impact the performance of the tire is also a disadvantage. And these are the tires caused by external forces, rather than the tire itself, then solid tires, can not withstand such a toss. "If the tire does occur drum kit, be sure to choose a tire having expertise and repair facilities for repair, if repair to improper tire life considerably shorten, Shijiazhuang Le Jianxin professional tire repair flawed, the introduction of advanced tire rubber hot melt technology, can cut off the side of the tire cord back layer after layer, then use vulcanizing machine sulfide repair over the place than the original tire Other places pull even stronger, strong degree more than doubled! That being the case, do not drive up and down on the curb it? It may not be, if you have to do, is also a trick to protect the tire. If you keep the body and the road was 90 degrees, try to drive straight forward slowly open up, fetal injury situation will be greatly reduced. In addition, the owner can do is to try to avoid using a smaller profile tires. "Aspect ratio" is the tire terminology, meaning the tread section width of the tire section height ratio. In simple little words, it is in the same tire width, tire side height (ie the distance between the tread and the hub), the lower the easier drum kit. In everyday driving, parking, we should keep a flat tire in the road environment. If you must travel in bad road conditions, then we must pay attention Fangmanchesu. Adverse effects because the slower speed, tire obstacles adverse impact caused by the road will be more light. Finally, security name constitution that China attaches great importance to the owner of the engine maintenance, but often neglected tire maintenance. "Regularly check the tire pressure, wheel alignment, tire transposition, to develop good driving habits, etc., can greatly extend tire life.