The CS55 model, born from the synergy between OTK Kart Group and Carlos Sainz Jr – Tony Kart Racing Team driver and now F1 driver– available in the shifter, direct drive and DD2 versions, is still confirmed as CS55 Racing also in its latest evolution called “MY 2025”. Several new features have been introduced by OTK Kart Group’s R&D department, in addition to the many confirmations from the past, including a manufacturing process able of guaranteeing the highest quality levels and a frame entirely made of Ø 30 mm tubes.
The CS55 model, born from the synergy between OTK Kart Group and Carlos Sainz Jr – Tony Kart Racing Team driver and now F1 driver– available in the shifter, direct drive and DD2 versions, is still confirmed as CS55 Racing also in its latest evolution called “MY 2025”. Several new features have been introduced by OTK Kart Group’s R&D department, in addition to the many confirmations from the past, including a manufacturing process able of guaranteeing the highest quality levels and a frame entirely made of Ø 30 mm tubes.
At the centre of the CS55 Racing new CSS MY 2025 project, the OTK Kart Group's corporate mission remains unchanged: “Designed, Engineered, Manufactured 100% Made in OTK – Italy.” A belief which founds on the selection of high-quality materials, machined processes as well as top manufacturing standards. According to the standard of the brand products, the OTK Kart Group’s R&D department conceived and introduced several technical innovations. Above all, the new M11 fairing kit as well as the new BWD and BWZ braking systems, reserved for the direct drive and shifter classes, respectively. For the 2025 product range, much work has also been done on the details with the introduction of a new aluminum chain tensioner, attached to the bearing support. CS55 MY 2025 novelties do not concern technical solutions only, but also aesthetic ones: the new chassis now features of an absolutely new designed stickers kit
At the centre of the CS55 Racing new CSS MY 2025 project, the OTK Kart Group's corporate mission remains unchanged: “Designed, Engineered, Manufactured 100% Made in OTK – Italy.” A belief which founds on the selection of high-quality materials, machined processes as well as top manufacturing standards. According to the standard of the brand products, the OTK Kart Group’s R&D department conceived and introduced several technical innovations. Above all, the new M11 fairing kit as well as the new BWD and BWZ braking systems, reserved for the direct drive and shifter classes, respectively. For the 2025 product range, much work has also been done on the details with the introduction of a new aluminum chain tensioner, attached to the bearing support. CS55 MY 2025 novelties do not concern technical solutions only, but also aesthetic ones: the new chassis now features of an absolutely new designed stickers kit
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. Thanks to CFD simulations and wind tunnel testing, as well as on-track testing by OTK's racing department, it was possible to create a new front spoiler and a new front fairing with unique designs, both able of significantly reducing aerodynamic drag, resulting in better performances on track. Coupled with the M11 kit, we find the side bumpers and rear protection, part of the M10 package introduced with the previous homologation. In addition, we also find the full-coverage floorplate that further optimizes performance by reducing turbulence. Finally, the entire set is enriched by the new CS55 Racing stickers, with a totally new design.
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. Thanks to CFD simulations and wind tunnel testing, as well as on-track testing by OTK's racing department, it was possible to create a new front spoiler and a new front fairing with unique designs, both able of significantly reducing aerodynamic drag, resulting in better performances on track. Coupled with the M11 kit, we find the side bumpers and rear protection, part of the M10 package introduced with the previous homologation. In addition, we also find the full-coverage floorplate that further optimizes performance by reducing turbulence. Finally, the entire set is enriched by the new CS55 Racing stickers, with a totally new design.
Among the main novelties launched by CS55 Racing with the CS55 MY 2025 is the new BWD braking system, designed specifically for direct drive classes, both Junior and Senior ones. OTK Kart Group’s R&D department focused its efforts on the use of the highest quality materials, aimed at ensuring an extremely high degree of component efficiency. The new concept, which inspired the project, led to the creation of a system that can significantly improve heat dissipation, reducing brake oil temperature and ensuring consistent and highly efficient braking in all conditions. BWD comes in two purchase versions, with 180 mm or 206 mm diameter discs, to meet the needs of all kart drivers.
Among the main novelties launched by CS55 Racing with the CS55 MY 2025 is the new BWD braking system, designed specifically for direct drive classes, both Junior and Senior ones. OTK Kart Group’s R&D department focused its efforts on the use of the highest quality materials, aimed at ensuring an extremely high degree of component efficiency. The new concept, which inspired the project, led to the creation of a system that can significantly improve heat dissipation, reducing brake oil temperature and ensuring consistent and highly efficient braking in all conditions. BWD comes in two purchase versions, with 180 mm or 206 mm diameter discs, to meet the needs of all kart drivers.
The innovations introduced with the BWD model, reserved for the single-gear classes, are also applied to the BWZ braking system, specifically conceived for “shifter” categories. Once again, the solutions adopted ensure excellent heat dissipation effects, both to cylinder and caliper, resulting in lower brake oil temperatures and consistent system performance. These improvements are then completed by a more efficient brake distributor and fully redesigned front calipers - both forged and machined components - which now feature revised fins and thickness, with the aim to increase heat dissipation capacity and also improving structural rigidity. As for the BWD model, the BWZ is also available with two rear disc options: 180 mm or 206 mm diameter, depending on the needs.
The innovations introduced with the BWD model, reserved for the single-gear classes, are also applied to the BWZ braking system, specifically conceived for “shifter” categories. Once again, the solutions adopted ensure excellent heat dissipation effects, both to cylinder and caliper, resulting in lower brake oil temperatures and consistent system performance. These improvements are then completed by a more efficient brake distributor and fully redesigned front calipers - both forged and machined components - which now feature revised fins and thickness, with the aim to increase heat dissipation capacity and also improving structural rigidity. As for the BWD model, the BWZ is also available with two rear disc options: 180 mm or 206 mm diameter, depending on the needs.
The several developments applied to the CS55 MY 2025 match with many confirmations. Above all, the adjustable pedals and the inclined steering wheel hub from the OTK Kart Parts line, which guarantee a nearly tailor-made driving position, making it ideal for every driver. Other key elements kept unchanged, are the HGS steering wheel equipped with a high rubber handgrip, able of significantly reducing driver effort during the many driving phases. This set of solutions (fine-tuned with the OTK Kart Group's reference racing department), therefore, makes it easy to achieve an optimal driving position for kart drivers of all sizes.
The several developments applied to the CS55 MY 2025 match with many confirmations. Above all, the adjustable pedals and the inclined steering wheel hub from the OTK Kart Parts line, which guarantee a nearly tailor-made driving position, making it ideal for every driver. Other key elements kept unchanged, are the HGS steering wheel equipped with a high rubber handgrip, able of significantly reducing driver effort during the many driving phases. This set of solutions (fine-tuned with the OTK Kart Group's reference racing department), therefore, makes it easy to achieve an optimal driving position for kart drivers of all sizes.
The CS55 MY 2025, in the version for the DD2 category, introduces the new features alike the shifter version: M11 fairings, BWZ braking system with rear disc available in 180 or 206 mm diameter, as well as new sticker kit graphics. Peculiar, however, is the new, easily removable, exhaust mounting system specifically designed for this category engines.
The CS55 MY 2025, in the version for the DD2 category, introduces the new features alike the shifter version: M11 fairings, BWZ braking system with rear disc available in 180 or 206 mm diameter, as well as new sticker kit graphics. Peculiar, however, is the new, easily removable, exhaust mounting system specifically designed for this category engines.
| OK | KZ | DD2 | |
|---|---|---|---|
| FRAME MATERIAL | Molybdenum chrome steel | Molybdenum chrome steel | Molybdenum chrome steel |
| TUBES Ø | 30 mm | 30 mm | 30 mm |
| WHEELBASE | 1045 mm | 1045 mm | 1045 mm |
| AXLE Ø | 50 mm with CIK-FIA stamp | 50 mm with CIK-FIA stamp | 40 mm |
| BRAKING SYSTEM | BWD with stub axles evolution type and DOT 5.1 lubricant | BWZ with stub axles evolution type and DOT 5.1 lubricant | BWZ with stub axles evolution type and DOT 5.1 lubricant |
| INCLUDED ACCESSORIES | Magnesium components, MXJ wheels, front torsion bar, standard aluminium pedals | Magnesium components, MXJ wheels, front torsion bar, standard aluminium pedals | Magnesium components, MXJ wheels, front torsion bar, standard aluminium pedals, new exhaust support |
| BODYWORKS | M11 spoiler M11 front spoiler with CIK-FIA homologated connections M10 fairings Stickers kit |
M11 spoiler M11 front spoiler with CIK-FIA homologated connections M10 fairings Stickers kit |
M11 spoiler M11 front spoiler with CIK-FIA homologated connections M10 fairings Stickers kit |
