Sway bar
Control Arm
Stabilizer Link
Torsion bar
Torsion bar


How the sway bars stabilizer bars antiroll bars powder coated?

Q:  How the sway bars stabilizer bar antiroll bars powder coated?A:  Please look at our updated powder coating line, Taizhou Yongzheng provide you sway bars stabilizer bar with durable finish.

How to make sure the sway bars stabilizer bar are in correct shape and dimension?

Q: How to make sure the sway bars are in correct shape and dimension?A: Each sway bar has a specific fixture, we verify and check the sway bar in such fixture, making sure they are in correct shape and size, 100% inspection is conducted in the factory. 

what does a torsion bar do

In automobiles a  torsion bar is a long spring-steel element with one end held rigidly to the frame and the other end twisted by a lever connected to the axle. It thus provides a spring action for the vehicle. See also spring.

What is the difference between a track bar and a sway bar

Track bars,correctly called Panhard bars, control side-to-side movement, which is really horizontal, not vertical.  Sway bars, correctly called Anti-Sway bars, reduce lean or sway, or roll. Track bars control the yaw (vertical axis) and sway bars control the roll (longitudinal axis).

Why do you need an aftermarket sway bar?

A short explanation of why you need an aftermarket sway bar is that it helps improve your vehicle’s handing and gives you, the driver, more control of the car. For example, if you're taking a right hand turn at high speed, the car begins to lean to the left and put more load on the left side tires, whereas the tires on the right hand side of the car start to lose contact with the road surface. Because of this, they aren't able to work effectively and efficiently in getting the car to rotate through the turn.

What is Anti Roll bar stiffness equation

How does a sway bar work?

Following the law of inertia, an object in motion wants to stay in motion unless acted upon by an outside force. In this case, the outside force to your vehicle is a change direction. As the mass of your vehicle corners, its inertia is causing the car to "roll" to the outside of the turn. This rolling affect causes the car to become unbalanced and "unplanted." The purpose of the sway bar is reduce this action and keep the body of your vehicle level, while maintaining traction and control as the weight is shifted from side to side. The transfer of loads through the sway bar can improve your vehicle’s handling?

Does your Sway bar come with bushings?

With only a few exceptions all sway bar kits come with bushings. Kits that do not have bushings are designed to mount without them.

Is a bigger sway bar diameter better?

Many customers fall into the ‘bigger is better’ trap and shop only for the largest sway bar they can find. Sometimes this works, but many times they are compromising their vehicle’s performance. If other modifications have been made – increased spring rate, lowered height, change in roll center, etc. – the best sway bar may be smaller. The vehicle is a combination of its parts and it doesn’t care how massive and cool the bar may look, it only cares how the sway bar interacts with the rest of its components. This is why our produces adjustable sway bars for many applications. The adjustable sway bar allows you to tune the vehicle to your driving style and suspension components. We also manufacture more than one diameter for popular applications to allow the customer to match the right sway bar to the vehicle.

What is an ideal sway bar setup for oversteer?

A “softer” setup in the front would encourage a good turning ability. The fact that the weight transfer puts a good deal of pressure on the outside tire and rotates around the corner. Meanwhile a “stiffer” setup in the rear will allow more minute losses of traction and a responsive rear end. This also helps rotation around a corner.

Why choose the sway bar from YZS?

We are a professional sway bar supplier of aftermarket and performance in China, with 15 years experience in this line. As a modern enterprise, it has a complete system of R&D, production, sales, service and also has a strong technical and management team. Give us a try and turn your curiosity into an obsession.

How can I calculate the over-steer or under-steer due to the anti-roll bar?

There's this great book called Fundamentals of Vehicle Dynamics by Thomas Gillespie. Chapter 6 of that book deals with cornering. The term he uses to describe cornering of a vehicle is steady state cornering. In the book, the equation for steering angle is given as follows,Steer Angle = 57.3 L/R + K*(lateral acceleration) where: L = wheelbase R = radius of curvature of curve K = understeer gradient (+ve if the car has understeer, -ve if oversteer, 0 if neutral). An anti roll-bar is a part of automotive suspension that is used to reduce vehicle roll by stiffening up the suspension. So basically, it transfers the lateral load generated due to cornering.  Now, understeer gradient is the ratio of load on axle to cornering stiffness, i.e., W/C. When both ratios for front and rear axle are equal, it is termed as neutral steering (K=0). When the ratio of front is greater than the rear, it is termed as understeering (K0). When the ratio of front is less than that of rear, it is termed as oversteering (K). Since, lateral force (a) = W (V^2)/(C g R)where, g = acceleration due to gravity andV= forward velocity,we can predict whether the vehicle is going to understeer or oversteer by calculation and equating W/C ratios for front and rear and make necessary adjustment to the steering angle to compensate for the same.

What are car control arms and what is the average cost of replacing them?

Control arms are part of the suspension which locates and controls the movement of the hub and strut. There are usually a couple control arms on each corner of the vehicle. They also have bushings and ball joints which is usually why they need replacement ovetrtime, since those are wear items. The cost to replace varies depending on the vehicle. Control arms cost different amounts depending on the vehicle, as well as the labor to install. Some are easy to install and take little time, while others can take several hours.

Do I need to replace the control arm if the bushings are worn? What is the safety risk?

Likely the replacement control arm comes with new bushings, although I'm not an expert in that particular car.  Most come as a unified assembly these days, and for a car as widely produced as the Accord, you could probably replace the entire unit for cheaper than just replacing just the bushings, but I'm not an expert in that particular car. Its always worth it to replace bushings on control arms.  I wouldn't mess with anything that has to do with integrity of the front suspension, unless you live somewhere where the roads are perfect and pristine, you never have to make evasive maneuvers, and you don't ever turn.   It also can substantially effect the front end alignment, depending on how worn it actually is, which effects how straight the car goes on the highway, and how well it responds to steering input.Front ends, while really sturdy, need to be intact to be operate as designed.   I realize you may not want to spend any money on it and want it to last another year, but its an  unfortunate false economy to not replace a control arm bushing.