Frame with mixed tubes of ø 28mm and 30mm, the main characteristic of the AM29-Y is the possibility of the wheel base adjustment in the position 1020 – 1030 – 1040mm. This allow an important versatility of this kart to its better adaptability to different categories, especially to the ones with very low power and medium - hard tires. Starting from the S18 models, also for this racing season we have conducted an important development activity aimed at optimizing the overall performance of the kart. The intervention has involved the evolution of the frame geometry, using new materials with improved mechanical characteristics and revising of some accessory components. New technical details have also been introduced, projected to increase the products dynamic efficiently and construction quality of the products.