# What is anti-dive geometry?

## What is anti-dive geometry?

Anti-dive geometry is effectively anti-squat for the front wheels under braking conditions. It works when an acceleration force is acting through the centre of gravity causing the front wheels to raise as the rear tries to squat due to the acceleration force acting on the centre of gravity causing the car to pivot.

What is anti-dive and anti-squat?

Anti-dive and Anti-squat are expressed in terms of percentage and refer to the front diving under braking and the rear squatting under acceleration. They can be thought of as the counterparts for braking and acceleration as Roll Center Height is to cornering.

What is dive and squat?

Dive is the sudden forward tipping of a car suspension under hard braking and squat is a term used to refer to the amount the car tips backwards under acceleration. But the ride would be extremely comfortable as you would be thrown forwards and backwards violently under braking and acceleration.

### How do anti dive forks work?

The idea is that when the fork is near maximum compression, the bike will be nearing the limits of grip—at which point it’s vital that bumps are absorbed without the anti-dive working against the suspension movement. Earlier in the braking process, it’s advantageous to slow the compression of the fork.

What is anti squat on a 4 link?

What is Anti-Squat? Anti-Squat is an engineering term which describes the 4-Links likely performance under acceleration. 4-Link settings with less than 100% Anti-Squat are likely to squat under hard acceleration (rear of car drops), and “hit the tires more softly”.

What is anti dive suspension?

Anti-dive is a suspension parameter that affects the amount of suspension deflection when the brakes are applied. When this happens there is no suspension deflection due to braking and no visible brake dive. There is still load transfer onto the wheels, but the chassis does not pitch nose down.

## What is anti-dive suspension?

What is anti-dive on a motorcycle?

This means the shocks now do not dive at all under regular braking and would dive very less under extremely hard or urgent braking. This resulted in the anti-dive shocks to be formed.

3 link requires a panhard rod or trac bar to keep the axle from moving left to right. The 3 linl is easier to fit around engine/exhaust/etc… 4 link with dual triangulation done well will locate the axle without panhard rod but is sometimes a bear to fit the upper links and the frame end of lowers.

### How does anti squat work?

Anti Squat (AS) Anti-squat is suspension’s mechanical resistance to compression due to forces from the engine (when on a bicycle human is the engine). Over 100% of anti-squat (AS) means suspension will extend under acceleration. With 100% AS suspension won’t either extend nor compress.

How do anti-dive forks work?

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## How is anti dive and anti squat control achieved?

However, anti-squat and -dive control can be achieved by producing a virtual lead arm front suspension, that is, by arranging the swing axis of a double-wishbone arm suspension to converge longitudinally along with the wheelbase at some point.

What happens when you have over 100% anti dive?

A common feature of having over 100% anti-dive is wheel hopping during braking conditions. Likewise, having over 100% anti-squat can cause the rear to lift instead of squat during acceleration which feels very odd to the driver and can cause poor driving and unloading of wheels at the wrong times resulting in a very poor handing car.

What is the geometry of anti dive geometry?

Anti-Dive Geometry. Anti-dive geometry is effectively anti-squat for the front wheels under braking conditions. When a car is under braking conditions, the braking force acts directly through the centre of gravity and causes the car to rotate.