MERIDA REACTO 4000 – Aero Precision Meets Everyday Performance

The MERIDA REACTO 4000 is built for riders who live for speed — whether you’re stepping into competitive racing, leading your club rides, or aiming for the podium in your next criterium.

Featuring a lightweight CF3 carbon frame with race-proven geometry, the REACTO 4000 delivers razor-sharp handling, explosive acceleration, and outstanding aerodynamic efficiency. The S-FLEX carbon seatpost and generous 30mm tire clearance provide an incredibly smooth and controlled ride, even on imperfect road surfaces.

Equipped with the latest Shimano 105 12-speed groupset, it ensures lightning-fast shifting and powerful, reliable braking in every condition. Every component of the REACTO 4000 is designed for seamless performance and maximum rider confidence.

At Mastermind Bikes, we believe in offering machines that redefine what’s possible. The REACTO 4000 isn’t just another aero bike — it’s your gateway to higher speeds, harder pushes, and greater victories.

Key Features:

• Frame: CF3 Carbon Aero Frame – Lightweight, stiff, and aerodynamic

• Fork: CF3 Carbon Fork for precise handling

• Groupset: Shimano 105 Di2 12-Speed Electronic Shifting

• Brakes: Shimano Hydraulic Disc for consistent stopping power

• Wheel/Tire Clearance: Up to 30mm for enhanced comfort and versatility

• Seatpost: MERIDA S-FLEX Carbon Seatpost for vibration damping

• Cockpit: Internal cable routing for a clean, aerodynamic finish

Ready to ride faster and further?
Unlock your full potential with the MERIDA REACTO 4000 — where aero efficiency meets everyday race performance.