Double Wishbone vs MacPherson Strut

What reasons are provided for a Double Wishbone suspension's superior handling over a Macpherson strut?

• Design maximizes tire contact with the road

• Softer springs

• Dynamic changes in Camber and Toe under Jounce and Rebound conditions

• Firmer springs

Answer explanation

Superior handling is a result of more consistent tire contact with the road and dynamic alignment adjustments especially on uneven or difficult terrain.

A double wishbone's adjustable suspension allows for far more specific alignment settings:

• for Camber, Caster and Tow

• Are especially beneficial for everyday drivers looking for a comfortable ride

• Provide more benefits for agressive driving situations

Answer explanation

A Double Wishbone suspension provides far more alignment adjustability for all settings including Camber, Caster and Toe.

This is not necessary for most normal driving conditions, but is more important for proper handling in aggressive or racing driving conditions.

What are Cons of the Double wishbone suspension design over MacPherson struts?

• Additional ball joints and control arms are required.

• Additional cost in Research, Maufacturing and Repair.

• Additional components required usually results in more weight.

Answer explanation

The benefits in adjustability and handling of Double Wishbone suspensions are offset by their complexity and cost.

Costs come in many forms:

-time in research and development

-time in repair

-increased complexity

-more components required

-generally increased weight

Advantages of MacPherson strut suspensions over Double wishbone include:

• Complexity allows wide range of adjustments for various driving conditions

• Less space is required

• The extra cost is well worth the large gains in performance

Answer explanation

MacPherson strut suspensions are simpler, space saving, and generally have a good balance of ride comfort and decent handling for most applications.

The Cons of MacPherson strut systems (limited flexibility and increased body roll) can be minimized by:

• Anti-roll bars

• Appropriate tuning

• Aftermarket options

Answer explanation

Anti-roll bars and appropriate alignment tuning can alleviate most concerns of MacPherson strut suspensions.

Aftermarket options can provide even more solutions for specific application concerns under general driving conditions.

Which suspension is best for you?

• MacPherson strut

• Double Wishbone

• Other