For the Tony Kart Racing Team, the OK 2020 World Championship was a real triumph with three drivers in the first three positions in the final standings. Englishman Callum Bradshaw reached the finish line ahead of compatriot Joseph Turney and the Spaniard Pedro Hiltbrand for a hat-trick that had the Racer 401R chassis as its common denominator. In this article we will not analyse the technical characteristics of the World Champion chassis, we have already done so in our “Sotto Esame” (Under Review) article "Racer 401 R, 2019 evolution of the Tony Kart top of the range chassis", but we will reveal all the little tricks adopted by Tony Kart Racing Team to make the 2020 world champion chassis a common one. How different will the World Champion kart be compared to mine? This is the question that all kart drivers have asked themselves at least once. This does not regard the set-up, which in fact varies according to many factors such as the grip of the track and the type of tyre used, but the tuning of a vehicle before starting a race weekend.