2026 Tony Kart 401T Chassis

2026 Tony Kart 401T Chassis.

We utilize the 401T in Junior, Senior and Master classes. The ultimate chassis for Rotax classes. We have been using Tony karts since 2008 because for us the chassis performs in all conditions and minimal changes are required from the start of a weekend when the track is green to the end of a weekend when theirs grip.

Why buy from BBR? Since 1997 we have been building chassis for customers and our team. Each chassis is built to the highest, precise level imaginable. followed up with over 30 years of karting experience for support.

A SUCCESSFUL HISTORY
The Racer 401 is the spearhead of Tony Kart’s success-rich history. Throughout its “sporting career,” from 2004 to the present, the flagship chassis of the Prevalle brand has been able to win more than 10 world titles and numerous victories at the international level. The desire to continue this path studded with victories also with the new “T” version, has led the R&D team of the OTK Kart Group to introduce several innovations, among which the new braking systems, BWD for the single-gear classes and BWZ for the shifter classes stand out, as well as the new M11 fairings. To achieve outstanding results, however, it is essential to work on even the smallest details. For this reason, among the improvements introduced, the Racer 401 T also features a new chain tensioner, made of aluminum, attached to the bearing support. Tony Kart also renews itself aesthetically, with new graphics for the fairing stickers kit.

RENEWED LOOK, HIGHEST EFFICIENCY
The quest for an ever-increasing aerodynamic efficiency led OTK Kart Group’s R&D department to develop the new M11 fairing kit, which complies with the current FIA regulations. Data obtained by OTK Kart Group’s R&D department through CFD computerized simulations and wind tunnel testing, combined with data gathered through on-track testing by the Tony Kart Racing Team, led to the birth of a new front spoiler and a new fairing with unique designs that guarantee a substantial reduction in aerodynamic drag, resulting in better performances on-track. Coupled with the two parts named M11, we find the side bumpers and the rear protection of the M10 kit, introduced already with the previous homologation, as well as the full-coverage floorplate that maximizes aerodynamic efficiency. The entire package, moreover, is decorated with stickers with a new, more attractive design, but faithful as always to the colors and style of the brand from Prevalle.

INNOVATION FOR DIRECT DRIVE CLASSES
Among the main novelties launched by Tony Kart, the new BWD braking system, reserved for Direct Drive classes, both Junior and Senior, undoubtedly stands out. The design activity carried out by the R&D department focused on the use of the highest quality materials, aimed at ensuring an extremely high degree of component efficiency. The unprecedented concept behind the project has resulted in a braking system able of highly improving heat dissipation, consequently reducing the temperature at the brake oil charge, ensuring drivers fully efficient braking consistent over time and in all track conditions. The BWD system is available in two versions: with a 180 mm or 206 mm diameter disc, according to the needs.

CUTOMIZED DRIVING POSITION
The evolution of the Racer 401 T also passes through several confirmations, such as the multi-adjustable pedals and the inclined steering wheel hub from the OTK Kart Parts line, which guarantee a nearly tailor-made driving position. Completing the package of parts kept unchanged from the past is the HGS steering wheel, whose high rubber handgrip significantly reduces driver effort while driving. The match of these pars, designed together with Tony Kart Racing Team drivers, guarantees, in a simple way, the achievement of an ideal driving position for kart drivers of all sizes.