Reacto 4000 Road Bike (2027)The thrill of speed at a price that's hard to ignore. We've packed in a huge amount of performance and value by using our latest more aerodynamic CF3 carbon frame and pairing it with high value, no nonsense kit. The ideal starting point for any aspiring road rider or racer. The perfect entry to our aero bike range. The REACTO 4000 uses exactly the same super aero frame shape as our top level models, but by combining our lightweight CF3 carbon frame