There are many variables that drivers and teams have to face to win a kart World Championship: from the weather conditions to the grip of the track, from the engine tuning to the search for the best chassis set-up ... Then, when everything is decided in a single test, the task of the teams and their standard bearers becomes even more challenging, because time is limited, the margin of error is zero and the stakes are very high. This was the case of the FIA ​​Karting World Championship OK, held in Italy, in Sarno on the “Circuito Internazionale Napoli” over the weekend of 16-18 September. This track, a protagonist in the international karting scene since 1999 (but with a new design in 2021), has a fast track (102 km/h average in the best lap recorded compared to the 100 km/h of Le Mans and the 96 km/h of Genk, in the latest FIA 2022 competitions) with its length of 1,550 metres, with long straights and wide radius bends. This conformation, together with an asphalt that is appreciated for its good level of grip, is often a guarantee of contested and spectacular races. After attending the final of the OK class, the premier class of single-speed karting, where MG SM tyres (yellow) were used, we closely analysed the Kart Republic KR2 (for further information, read the “Under Review - KR2 M.Y. 2022: the single-speed Kart Republic chassis evolves to keep winning”) of the winner Matheus Morgatto, driver of the Spanish team DPK Racing managed by the brothers Diego and Pablo Rodrìguez. In this Must have TKART we will indicate which accessories and solutions in terms of set-up were adopted by the Brazilian driver and the Spanish team, on a sunny day in late summer, with an average temperature of 21 degrees.