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How To | How to build a racing kart. From the chassis to the product … “turn-key”

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HOW TO BUILD A RACING KART: FROM THE CHASSIS TO THE PRODUCT ... "TURN-KEY"

08 September 2018
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INTRODUCTION

The appearance of a complete kart, when it shines immaculately in the showroom windows of retailers, as well as when it races on the tracks around the world, all greasy and blackened, is well known by everyone. Perhaps less known is the process required to achieve that result starting from the essential few tubes welded together that form the chassis. A process that assembles almost a thousand pieces, including large plastic components and tiny washers, and in which each step follows a precise logic to achieve the best result. Clearly, the process has many possible variations, dictated by the characteristics of the accessories that need to be assembled, the convictions of the technicians and the habits of the various manufacturers. However, the general guidelines are the same for everyone, like a basic and indispensable trace without which nothing can be built.

1 THE FRAME

The starting point is obviously the frame, which in turn is the result of a series of procedures designed to weld together the tubes of which it consists. Basically, the big difference in the process is represented by manually welded
frames and those that use an automated and robotised welding process. The result, in the end, is the same: a chassis that is ready to form the backbone of a kart.
Before proceeding with the assembly of the first components, however, the frame must be cleaned, eliminating any excess paint by using tools such as a drill and a milling machine. Once the milling is complete, we can finally move on to the next step

2 BEARING HOUSINGS

The first accessories that are fitted onto the frame are the "bearing housings" with the rear bearings, an essential step in order to proceed with the assembly of the brakes and axle in the next step. Firstly, however, it should be noted that one of the main differences in the process of building a racing kart is the analysis of the type of vehicle: in fact, non-shifters require less effort, being equipped with just the rear brake. A KZ, on the other hand, equipped with a dual braking system, rear and front, will require more effort and a little more time.

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