QUOTE(toonny @ Jan 29 2015, 04:46 PM)
Hi everyone, how do we know the tire is not good? My current tire keep drags me to the left. After perform alignment, within 1 week the dragging effect comes back.
Tire shop sifu helps to diagnose the tire, he claimed the drag effect is come from the tire. He also placed the tire on the balancing machine, spin it and show me the tire was uneven of the surface.
Then he said no matter how many alignment you do, the drag effect will also come back. Need advice pls..
That is call CAMBER THRUST. When you have a bad alignment previously that already causes permanent damage to the tire, no matter how you align it the car will still pull 1 side driving like crab.
https://www.rightturn.com/tire-facts/camber-thrust/On the other hand, when the tyre shop fler plonk tyre on balancing machine to spin, if the tyre is showing 1 side hai 1 side low, that 1 is the normal camber thrust condition. Use your palm to gradually touch on the surface whilst the tyre is spinning, if got bumpy feeling that also means that your esoba got plobrem or your bushing is wearing off. So, tyre UNEVEN also got many type. Not simply say bcoz tayar uneven then the car pull 1 side geh.
Hence, usually tayar doesn't really count what brand is better. If you do not practice tyre swap on a regular basis, neither check your alignment like 1/2 year once interval, chances are you'll keep getting camber thrust later when you fix the alignment.