The flagship model from Redspeed Kart benefits from new solutions that further refine drivability, braking performance and ease of use, which have also been adopted on the TDX S. The Rookie, available in EVM and EVS versions, remains confirmed for the MINI categories.
Redspeed Kart unveils its Model Year 2027 chassis range, developed through the joint efforts of OTK Kart Group’s R&D Department and its dedicated racing division. At the heart of the updates are the RX TS, the benchmark model in the range, and the TDX S, both featuring innovative technical solutions for the Direct Drive, Shifter and DD2 classes. The Rookie, meanwhile, is once again confirmed for the MINI categories in its two versions, EVM and EVS.
Development is guided by the company’s long-standing philosophy: “Designed, Engineered, Manufactured 100% made in OTK – Italy”. The entire process takes place at OTK Kart Group’s Chassis Division facilities in Prevalle, Italy, from design through to manufacturing, using highly automated processes, with meticulous checks on the materials used, ensuring extremely high manufacturing standards and complete product repeatability.
RX TS, continuous evolution
Redspeed Kart’s flagship model remains the RX, now in its latest “TS” evolution, drawing on OTK Kart Group’s experience in major international competitions. The main updates concern the components, which have undergone a series of refinements designed to further improve ease of driving and the kart’s ability to adapt to different track conditions.
New Stub Axles for Direct Drive and Shifter
Among the key updates on the RX TS are the new stub axles, specific to each chassis configuration. The Direct Drive version introduces the HFT stub axles, while the Shifter version adopts the HFZ. Both components have been developed to make the kart more intuitive and give the driver immediate feedback from the front end, while also providing greater versatility across different track conditions.
Maximum Braking Performance
The braking system also takes another step forward with the introduction of a new 180 mm-diameter floating brake disc. This solution has been developed to increase efficiency, deliver more consistent performance on track and reduce brake pad wear. The component is fitted to both the BWD braking system, designed for the Direct Drive categories, and the BWZ system, used in the Shifter classes. Both systems stand out for their effective thermal management, which promotes heat dissipation and helps keep the average brake fluid temperature under control.
Attention to every detail
The Shifter configuration of the RX TS introduces a new chain tensioner, designed to simplify chain adjustment and engine positioning. The component makes set-up operations easier and helps maintain the correct chain tension during use.
The model’s key features
The updates introduced on the RX TS for Model Year 2027 complement established technical solutions, starting with the chassis, built entirely from 30 mm-diameter tubing. The M11 fairing kit is also retained, featuring the front number panel spoiler and front bumper, developed through CFD simulations, wind-tunnel testing and on-track testing to ensure high aerodynamic efficiency while complying with FIA regulations. The aerodynamic package is completed by M10 side bumpers. The fully adjustable pedals and inclined steering-wheel hub allow the driving position to be tailored to drivers of different sizes, while the HGS steering wheel, with its high-grip rubber covering, helps reduce the effort required while driving.
TDX S, a shared technical DNA
Alongside the RX TS is the TDX S, featuring a chassis built entirely from 32 mm-diameter tubing and available in both Direct Drive and Shifter configurations. In terms of components, the model adopts the updates introduced on the RX TS: HFT and HFZ stub axles, the new 180 mm floating brake disc and, for the Shifter version, the new chain tensioner.
DD2, targeted updates
The DD2 versions of the RX TS and TDX S retain their respective chassis geometries while incorporating selected updates introduced for Model Year 2027. Both feature the HFZ stub axle and the new 180 mm floating brake disc, paired with the BWZ braking system. The removable exhaust support is also retained, specifically designed for the engines used in this category.
Rookie EVM and EVS, continuity for the MINI class
For the MINI categories, Redspeed Kart confirms the Rookie, available in EVM and EVS versions. Its technical package includes forged, fully adjustable aluminium pedals; BMT4 stub axles paired with 235 mm steering tie rods; magnesium front and rear hubs; and the BSM5 braking system, featuring a 149 mm floating brake disc and 4A brake pads. The fairing kit includes the M9 front number panel spoiler and front bumper, paired with M8 side bumpers.