From Merida Reacto 5000 (2027) in the striking Halo Green (Slate Grey) color scheme is the entry point into the world of professional aerodynamics. This bike is specifically developed for cyclists who seek the speed and looks of a high-end aero racer but also value excellent price-performance ratio.

The heart of the Reacto 5000 is the lightweight CF3 carbon frame (approx. 1,185 grams in size M). Although this frame is slightly heavier than the CF5 variant, it shares the exact same aerodynamic design perfected in the wind tunnel. The geometry is aggressive and speed-focused, but thanks to the strategic placement of carbon fibers, the bike remains stiff where needed for power transfer and comfortable enough for long rides.

Shimano 105 Di2: Electronic shifting for everyone. A major plus of this 2027 model is the Shimano 105 Di2 12-speed groupset. With this, Merida brings electronic shifting to a wider audience. With the push of a button, you shift flawlessly and lightning-fast, even under heavy load during a sprint or on a steep climb. The hydraulic disc brakes from the same series provide reliable stopping power in all weather conditions.

Despite its focus on speed, the Reacto 5000 is surprisingly comfortable and practical:

• S-Flex Seatpost: The aerodynamic carbon seatpost features a clever cutout with an elastomer that absorbs road shocks without compromising stiffness.
• Disc Cooler: Specific aluminum fins at the brake calipers dissipate heat, improving braking performance during long descents.
• Cockpit Integration: Thanks to smart cable routing at the stem, almost all cables are out of sight, which not only makes it faster but also gives the bike a very sleek, modern look.

The bike is equipped with a Vision Team 35 Clincher wheelset. These aluminum wheels have a rim height of 35 mm, offering a nice balance between aerodynamic advantage and stability in crosswinds. The Continental Grand Prix TR 28 mm tires are known for their excellent grip and low rolling resistance, and are also tubeless-ready for those who want even more comfort and puncture resistance.

The Merida Reacto series uses advanced techniques to guarantee an optimal balance between speed and comfort. The foundation is formed by Nano Matrix Carbon technology, where the resin is reinforced with nanoparticles to significantly increase the impact resistance of the frame. During the production process, the Anti Wrinkle System is applied, where internal silicone molds ensure a smooth finish without wrinkles on the inside of the tubes. This results in a construction that is both lighter and more reliable.

The aerodynamic design is based on the NACA Fastback profile. These teardrop-shaped tubes are flattened at the rear to efficiently guide airflow while keeping the weight low. To compensate for the stiffness of the frame, the S-Flex seatpost was developed. By integrating a cutout with an elastomer in the seatpost, vibrations from the road surface are absorbed without losing aerodynamic advantages.

Another specific innovation is the Disc Cooler technology. Aluminum cooling fins at the brake calipers ensure that heat is dissipated faster during long descents, guaranteeing consistent braking performance and preventing overheating. Full integration is further implemented with the Wire Port, where all cables run directly into the frame through the headset. This reduces air resistance at the front of the bike and provides a sleek appearance.