Leaf vs Coil Springs- Which is the Best Suspension System?


A system of shock absorbers, springs and linkages that unite a vehicle to the wheels, thereby allowing relative motion is what we refer to as a suspension system. The latter allows a vehicle to brake for safety. There are lots of suspension systems, but we will only concentrate on Leaf vs Coil Springs Systems.

Leaf Springs?

Basically, a leaf spring suspension features several long steel strips of different sizes interconnected with each other. Leaf springs set-ups assume an elliptical shape by using spring steel with features that enable it to flex once the pressure is applied on either end. However, it assumes its initial position via a damping process. The steel is normally divided into rectangular shapes. They are held closely using metal clips at either end and a strong bolt through the leaves’ middle. The spring is then attached to the vehicle’s axle with huge U-bolts to secure the suspension in place.

Spring steel elasticity enhances flexibility within the suspension to improve and control the vehicle while moving. Actually, a leaf spring set-up has been proved as an ideal option for vehicles for several years. But nowadays leaf spring set-up is only found on Military and HGVs.

What are the Advantages of Leaf Springs?

Leaf springs feature a huge amount of metal placed on each other. As a result, it offers more support between the axles, wheels, and the vehicle’s chassis. These springs can handle massive vertical loads. That explains why they are still used in heavy-duty industries.

Also, leaf springs feature simple and a better design. That’s why it was the best set-up for the mass production of cars to enhance reliability and keep the costs low.

In cars, damping is a vital feature. That’s because in case the suspension is under-damped, your vehicle will stagger then bounce well if it hits holes or bumps on roads. Leaf springs proved to cope with vehicle damping better thanks to the friction created between steel plates.

Disadvantages of Leaf Springs

Unfortunately, leaf set-ups fail in suspension tuning. In performance car applications and racing, it’s essential to control a suspension set-up for diverse driving styles and driving conditions. But leaf springs cannot be adjusted, thereby leaving little scope for lengthening and shortening of the leafs. Furthermore, leafs only allows a few directions of motion and can only move vertically. This feature causes great wear and tear on the joints.

Coil Springs

Coil spring suspensions are more flexible than the leaf springs. That’s why all high-performance applications use coil springs. However, these springs are not used for heavy vehicles since the coil placed on the axle set-up is not as strong as the leaf springs. Note that only a few applications benefit by using a leaf spring instead of coil springs in terms of performance.

Coil Springs Advantages

  • Best for cars driven on rough terrain
  • Help to improve ride quality by lessening the bounce
  • Gives your car its height thereby protecting it from the ground
  • Its low cost and do not need to be maintained.


  • Not suitable for heavy machines
  • It’s prone to breaking or cracking if subjected to excessive pressure.
  • You’ll need to have other enhancement so that the coil can last longer.

Finally, there is an exclusive range of vehicle suspension products. You should speak to the experts to help you select the best spring that matches your vehicle’s needs.

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