# Caster

## Drift Car Set Up

For those that are not familiar with drifting, it is a motorsport in which the car must maintain constant and fluid oversteer between a series of corners on a circuit whilst hitting certain clipping zones on circuit and having as much proximity with the other car as possible. A good set up can go a long way in keeping the car sliding and providing a fluid, predictable transition.

## Bobby’s Build: Part 1

Interior Strip Down The first stage of most race car builds when starting with a road car is to strip out all of the unnecessary weight. Bobby’s build was no different as he took to the interior of the Mitsubishi Eclipse, pulling out everything in sight except for the door

## Motorcycle: Front Geometry

Due to motorbikes having 2 wheels instead of 4, they have significantly less geometry to think about. However, the geometry that they do have is adjustable and affects the handling of the bike in a big way.  The geometry categories are split into front geometry and rear geometry. This section

## How To Align Your Car

This section covers how to align your car track-side or in your garage and takes you through the procedure and the order of what to adjust.

## Caster

How to Measure The first stage of adjusting and tuning your caster angle is to first measure and understand what your vehicle currently has. There are two main ways to measure your caster angle: Turning plates and a digital or bubble camber/caster gauge Measuring the location of the upper and

## King Pin Inclination

On current suspension systems, the kingpin is set at an angle to the vertical plane when viewed from the front or rear of the vehicle. This angle is known as the king pin inclination. The purpose of the KPI is to produce vertical displacement of the vehicle in during steering in an upward direction. The larger the KPI, the larger the effect. This lifting effect produces a self centering torque similar to that of caster. The KPI also generates scrub radius.

## Caster

What Is Caster? Caster is the measure of how far forward or behind the steering axis is to the vertical axis, viewed from the side. This is measured by drawing a line between the top and bottom pivot points of the front upright. The angle between the drawn line and