The B 28-X Motorsport model is meant mainly for the Italian market, where it was homologated following the directions of Csai for the new 60 Baby kart class. The chassis is made of 28 mm tubes, it is equipped with a 30 mm axle and a latest-generation hydraulic braking system with 150 mm rear disk (the same of the C 28 C-J model, taken up from the front brakes of the 125 cc class). The Fik 05-09 fairings reproduce on a small scale the fairings of 100 and 125 karts and contribute to a definitely elegant and agreeable look. However, the new Birel kart for introductory classes aged 7 to 9 is essentially based on quite noticeable technical aspects that place it at a high level within its own market segment. The outfits are the same as those of the Racing versions and include hubs, crown carriers, disk carriers and all the accessories of the Hq Freeline range, as well as the 280 Motorsport steering wheel..