Merida REACTO 8000

The Merida REACTO 8000 is a high-end aero road bike designed for riders who want measurable speed gains backed by reliable, race-proven components. The REACTO CF3 IV carbon frame uses a NACA Fastback tube profile — a shape borrowed from aeronautical engineering — to reduce air resistance without the stiff, punishing ride often associated with pure aero frames. The matching Reacto CF3 IV DISC carbon fork with tapered steerer adds steering precision and front-end stiffness.

Shifting is handled by the Shimano Ultegra Di2 12-speed electronic groupset. Unlike mechanical systems, electronic derailleurs respond instantly to a button press with no cable stretch or friction to account for — gear changes stay crisp over thousands of kilometres. The Shimano Ultegra 52/36 chainset paired with the R8101 11-30T cassette provides a wide gear range suitable for flat roads, rolling terrain and climbs alike. Crank arm length is matched to each frame size for a biomechanically efficient pedalling position.

The Reynolds AR 60 DB carbon wheelset offers a 60 mm rim depth for aerodynamic benefit, mounted on 12 mm thru-axles front and rear for improved brake track alignment and lateral stiffness. Continental Grand Prix 5000S TR 700x28C tubeless-ready tyres roll fast, resist punctures well, and allow lower tyre pressures for additional comfort on rough roads. The Disc Cooler system — CNC-machined aluminium fins integrated into the Shimano CL800 rotors — dissipates heat up to 35% more effectively, keeping braking performance stable on long alpine descents.

Merida's Wire Port system routes all cables and hoses fully internally, and the Vision Metron 5D ACR EVO carbon cockpit maintains a clean, aerodynamic front end with no external lines. The Merida Team CW aero carbon seatpost and Prologo Scratch M5 saddle complete a thoroughly considered build. Six sizes from XXS to XL make the REACTO 8000 accessible to a wide range of riders, from competitive club cyclists to dedicated gran fondo competitors.