Merida Reacto Disc 8000-E Light Blue/Black 2021


Super lightweight carbon aero bike with Shimano Ultegra Di2 groupset and Reynolds carbon wheelset and Vision Metron integrated cockpit

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Merida Reacto Disc 8000-E Light Blue/Black 2021

The Reacto has always been a class leading aero bike, combining state of the art aerodynamics with rider comfort.

With its predecessor delivering almost unrivalled aerodynamic performance the Merida R&D team had to look at the smallest incremental improvements.

The 4th generation Reacto is more slippery and beautiful than ever, incorporating wider tyres and much neater cockpit cable integration.

Computational Fluid Dynamics (CFD) calculations modelled performance in a virtual wind tunnel to optimise aerodynamics guiding the changes which gave most aerodynamic benefit:
New fork design, smoothly integrated into the frame, significant improvement
New handlebar design integrating the cables inside, saves about 2 watts per cable
Increased gap between the tyre and seat stays and between tyre and fork crown and blades optimises airflow
A lower junction between the seat stays and seat tube reduces drag further.

In the world of Pro-Tour racing no area can be ignored, Many small details such as integrating the front disc cooler behind the fork and the rear disc caliper in the rear triangle and creating new bolt through axles with the thread integrated into the fork dropout also minimise drag and improve aerodynamic performance.

All these improvements over-compensate for the aerodynamic compromises made to give the Reacto bigger tyres. The result: the perfect package of comfort, aerodynamic, lightweight and style.

Prototypes were wind tunnel tested following the German TOUR magazine standard, including the ‘moving leg dummy’ test. The Reacto CF5 needs just 209 watts effort for 45 km/h speed, 1 watt faster than its predecessor, and in the leading group of aero road bikes ever tested by TOUR magazine.

All Reacto come with powerful hydraulic disc brakes. Calipers are mounted on the chainstay for better dissipation of braking forces using the flat mount standard for a neat, flush fit. Calipers sit on top of CNC’d aluminium Disc Cooler fins which reduce operating temperatures by up to 35%.


FrameCF5 IV - The highest quality fibres for minimum weight, aggressive Pro-Tour geometry and extensive aerodynamic profiling. BB86 BB standard, 142 x 12mm axle standard. Maximum tyre clearance 700 x 30c
ForkReacto CF5 IV Disc; full carbon, tapered steerer. Maximum tyre clearance 700 x 30c
HeadsetFSA ACR
StemVision Metron 5D ACR Integrated : carbon - Length : 100 mm-XXS/XS/S, 110 mm-M, 120 mm-L/XL
HandlebarVision Metron 5D ACR Integrated - carbon
GripsMerida Road Expert
Brake systemHydraulic disc
Brake leverShimano Ultegra
Brake calipersFront: Shimano Ultegra; Hydraulic disc with Shimano RT800; 160mm rotor Rear: Shimano Ultegra; Hydraulic disc with Shimano RT800; 160mm rotor
TyresFront: Continental Grand Sport Race; 700 x 25C; Kevlar bead; folding Rear: Continental Grand Sport Race; 700 x 25C; Kevlar bead; folding
Wheel size700c
WheelsRims: Reynolds AR 58 DB, 21mm inner rim width; 41mm profile Spokes: part of wheelset Front Hub: Reynolds AR 58 DB, 100x12mm; Centerlock Rear Hub: Reynolds AR 58 DB, 142x12mm; Centerlock; including removable lever with 4/6mm Allen key
Front derailleurShimano Ultegra Di2
Rear derailleurShimano Ultegra Di2; GS
Shifter/sShimano Ultegra Di2
ChainKMC X11EL
CassetteShimano CS-R8000; 11-30 teeth; 11 speed
ChainsetShimano Ultegra; 52-36 teeth chainwheel with 165mm - XSS, 170mm - XS/S, 172.5mm - M, 175mm - L/XL length crank
Bottom bracketSM-BB72-41B, Pressfit 86.5
PedalsNot included
SaddlePrologo Scratch M5
SeatpostMerida Team CW; Aero shape; 15mm lay back; Carbon with integrated light and battery
Battery capacity