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    Reacto 4000 - Grey/Silver - MY25Blue/Black

    Reacto 4000 - Grey/Silver - MY25

    Reacto 4000 - Grey/Silver - MY25Blue/Black

    Entry level carbon aero bike with race proven ProTour geometry CF3 carbon frame equipped with Shimano 105 2 x 12 speed groupset and hydraulic disc brakes.

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    £2,400.00

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

      The 4th generation model is more slippery and beautiful than ever, incorporating wider tyres, much neater cockpit cable integration and a series of incremental improvements to boost performance.

      In the world of Pro-Tour racing no area can be ignored. Computational Fluid Dynamics (CFD) calculations were used to model performance in a virtual wind tunnel, guiding the changes which offered the most aerodynamic benefit:

      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 so it's in the leading group of aero road bikes ever tested by TOUR magazine.

      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 minimise drag and improve aerodynamic performance.

      A myriad of small improvements over-compensate for the aerodynamic compromises made to give the Reacto bigger tyres, resulting in the perfect package of comfort, aerodynamic, lightweight and style.

      A long string of test wins, perfect scores and awards confirm the successful evolution of the race-proven DNA of the previous model with the latest trends and technologies. Cycling Weekly described it as 'without doubt one of the most complete bikes available on the market', Cyclingnews 'an utterly brilliant and faultless machine' and Cycling Plus were 'hugely impressed'.

      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%.

    • Year
      2025
      Frame
      CF3 IV - carbon with the same geometry and aeroydanmic profiling as the CF5 IV with a more budget friendly carbon lay up. Tapered headtube, Disc Cooler, BB86 BB standard,142 x12mm axle standard. Max tyre size 700 x 30c
      Fork
      Reacto CF3 IV Disc; full carbon, tapered steerer. Max tyre size: 700 x 30c - Disc cooler technology
      Headset
      Merida Team SL (OP-203 neck)
      Stem
      Merida Expert SL 2PII; aluminium; -9 degree rise - Length - 90mm (XXS-XS), 100mm (S), 110mm (M-L), 120mm (XL)
      Handlebar
      Merida Expert CW; aluminium; 380mm (XXS-XS-S); 400mm (M-L-XL)
      Grip
      Merida Expert
      Brake type
      Hydraulic disc
      Brake lever
      Shimano 105
      Brake calipers
      Front: Shimano 105; Hydraulic disc brake caliper with Shimano RT54; 160mm rotor Rear: Shimano 105; Hydraulic disc brake caliper with Shimano RT54; 160mm rotor
      Tyres
      Front: Continental Ultra Sport III; 700 x 28C; Kevlar bead Rear: Continental Ultra Sport III; 700 x 28C; Kevlar bead
      Wheel size
      700c
      Wheels
      Rims: Merida Expert CW; 19mm inner rim width; 30mm rim depth Spokes: Double Butted Black stainless Front Hub: Shimano HB-TC500; 100 x 12mm; 28 spoke; Centerlock Rear Hub: Shimano FH-TC500-HL; 142 x 12mm; 28 spoke; Centerlock
      Speeds
      24
      Front derailleur
      Shimano 105
      Rear derailleur
      Shimano 105; GS
      Shift levers
      Shimano 105 disc
      Chain
      Shimano CN-M6100-12
      Cassette
      Shimano CS-R7101; 11-34 teeth; 12 speed
      Chainset
      Shimano 105; FCR7100, 52-36 tooth chainset; Crank length - 165mm (XXS), 170mm (XS), 172.5mm (S/M/L), 175mm (XL)
      Bottom bracket
      SM-BB71-41B, Pressfit 86.5
      Saddle
      Merida Expert SL; V-mount; including Merida minitool
      Seat post
      Merida Team CW; Aero shape; 15mm layback; Carbon