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TKART magazine Under Review | RY30-S16 SH: the 2024 upgrade of the "all 30" Shifter chassis by Birel ART
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Giacomo Mantovani
11 May 2024
CIK-FIA 2022

The Birel ART RY30-S16 chassis is registered with FIA Karting homologation number 007/CH/10, the validity of which is extended until the end of 2024. The new FIA Karting regulations introduced in 2018 provide that new approvals last indefinitely, provided that the manufacturers renew their validity annually by paying the relative approval fee (To learn more, read, "Dossier | FIA approvals: what they are, what they are for, how long they last... the ultimate guide!").

KZ - KZ2

The RY30-S16 is homologated for use in both direct drive and shifter, and there are two different versions characterized by the acronyms SH (the shifter) and DD (the Direct Drive), specific to the two categories, which differ in certain features (for example, the RY30-S16 SH version has the gearshift attachment point integrated into the frame and in the shape of the main rails). This article analyzes the version intended for the Shifter categories.


Frames generally are made with 30 and/or 32 mm tubes. The RY30-S16 features a frame composed entirely of 30 mm diameter and 2 mm thick tubes.


The welding process is entrusted entirely to robotic tools except for a couple of points where it remains manual (see later in the article for more details).


All accessories are under the FreeLine brand (the division/brand of the Birel ART company, which deals with the design and production of karting components). All standard components are made of light aluminium alloy, only the wheels are made of magnesium alloy.


May 2024 article update

Birel ART, a historical manufacturer in the karting sector (active since 1959), as every year updates its chassis range with a new evolution, on this occasion labeled "S16." Specifically, the model we analyze is the one with tubes all 30 mm in diameter, in the Shifter version, called RY30-S16 SH. This replaces the previous CRY30 S15, which like all its predecessors saw in the C of the initials CRY30, the attestation that it was a frame intended for the Shifter category. Since 2024, however, the model has been called, precisely, only RY30 and the version is defined by the abbreviations SH (for Shifter) and DD (for Direct Drive). To recognize one from the other at first glance, just look at the area of the steering column supports: the one intended for shifter engines has, in fact, the housing for the gearshift.

At production level, the Italian manufacturer claims further improvement in the pursuit of maximum repeatability among different examples of this model. In addition, welding processes have been further improved in order to achieve less mechanical stress on the metal during these processes. With regard specifically to the frame structure, a reinforcement has been introduced, on the inside, in the rear part of one of the right side members (precisely the one closest to the seat) in order to ensure greater strength at a point that is certainly highly stressed during track activity. But that's not all, because, the improvements introduced in 2024 also involved accessories, with the introduction of a new front brake caliper and an upgrade in the manufacturing process of the axle bearing shells.

The S16 version retains the proven geometry of the previous S15. The reason is simple, according to Birel ART: to maintain the adaptability and handling characteristics that enabled the Italian manufacturer's official team, Birel ART Racing, to win the KZ2 FIA Karting European Championship 2023.
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One of the most noticeable evolutions in the 2024 version introduced by Birel ART, at first glance, concerns its restyled bodywork kit graphics.
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In the production of its chassis range and related accessories, for Birel ART producing specimens of chassis that are always equal to each other and perfectly adherent to the specifications of the initial project is one of the main targets. In fact, succeeding in doing so makes it possible to offer a high degree of quality and equal performance among the various specimens produced, to the benefit of teams and drivers who use the Italian manufacturer's products. This aspect is sought through a scrupulous selection of metal materials and their heat treatments, sourced from external suppliers. Any variation in the chemical composition of the metal (or its crystalline structure), due to suboptimal heat treatments, can significantly alter the mechanical characteristics of the finished part, such as fatigue resistance and ductility. As for the welding processes of RY30-S16 SH frame, they remain robotic except for a very few points where complex geometry or limited accessibility prevent the use of robots. In these cases, welds are performed manually by skilled operators.

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