UR bars:




The ride after change rims:

When you turn your car into a corner, your front MacPherson strut will be slightly expand, coupled with chassis flex to induce a certain degree of body roll. For example, when you turn right at certain speed(basically rempit kinda speed), your left front wheel will start to squeel like a pig and you start to feel steering kick back. That is called CAMBER THRUST. I know you wouldn't click on the link and read, so I make it simple for you to understand what is a CAMBER THRUST. When you roll a coil upright, the coin go straight because the radial force(upward) and lateral force(side way) are equal. If you roll your coin by slant to the left, the coin will roll in to the left, getting tighter and tighter until spin. Vice versa, if you roll the coin by slant to the right, the coin will roll to the right until it spin and fall. Now imagine, when you're taking the above right corner, your car body roll due to chassis flex and your suspension setup, the weight being transferred into your left wheel. Your wheel is pulling OUT to the left, whereas you're turning into right. You'll hear a lot of tyre screeching noise because of this nature of design. The car itself is designed to understeer(particularly our cars that uses Torsion Beam at the back). Reason for factory to setup such understeer is to alert you, the tyre is starting to reject your turning direction because it's started to stress. The faster you attack the corner, the harder CAMBER THRUST you get, the more tyre screeching noise you hear.

Why those cars gets an accident despite they're understeer to the RIGHT, but they crash their car on the LEFT?!  (Take note, more than 80% of my investigation of speeding accidents, it appears to be a long tyre marks indicates that victim is trying to negotiate a high speed right turn, whilst ended up crashed into the left side) Here's the reason, our country practice right side driving. Average Joe like you and me would be automatically have more confident in negotiating right turn better than left, on a high speed left turn, regardless of what our subconcious will tell our hands to go ease on the steering wheel trying not to push it too far as we can't see the longkang on the left hand side. Ask yourself, how often did you hear tyre screeching sound when you racing through a left corner? But it happens alot during a right turn! Now, set that confident level of driving theory aside. What happened is, when CAMBER THRUST beyond our EXPERIENCE, we think we're going to lose the head(too much understeer as if the car going to fly), we instinctively jump the gas pedal. Your transmission(known as GEAR BOX) sense the left wheel is on the ground, so the differential will absorb the torque from the wheel on the ground, and try to gain grip on the RIGHT. When that happened, originally your car was having heavy understeer unable to turn right, now your gearbox helped you to put more torque on the right wheel because you jump the gas pedal. Now you have an OVERSTEER to deal with Again, an average Joe like you and me probably will immediately turn the steering wheel to the LEFT rapidly(triple facepalm). Don't forget our left wheels is currently having CAMBER THRUST to the left, our steering input got very little(probably none) effect to the tyre traction anymore. Still I have to mention this again, an average Joe like you and me found the steering is not helping, so INSTINCTIVELY we STAB on the brake pedal! The poor car now from oversteer to the right became extreme weight shifting from the back to the front. Let's reconstruct how we make a perfect recipe of counter clockwise DONUT.