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Unadulterated aero road speed.
Unadulterated aero road speed.
Merida

Merida Reacto 4000 - MY25 - Grey Silver

£2,400.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Hassle free returns

In the unlikely event that you are unhappy with your purchase or you have received a faulty item, please review our returns policy below:

REFUNDS
Refunds are processed via the original payment method used for your purchase and refunds can only be processed to the card originally used for the transaction. Please allow up to 14 days for the monies to be visible in your account, this is due to bank clearance policies. Cheques are not accepted as a method of payment or for refunds.

STORE PURCHASES
We are happy to refund your item within 7 days for a full refund, or 14 days for a credit note. Proof of purchase is required, i.e. a receipt and items are to be unopened and unused (unless faulty). Kindly note we are unable to refund customised, special and bicycle orders.

WEB ORDER RETURNS
All customers are to email
info@essexbicycles.com for all returns and queries prior to posting. Returns will not be accepted unless you have received an email confirmation from Essex Bicycles.

We are able to accept refunds for items within 30 days of purchase for a full refund or credit note. Proof of purchase is required and all items are to be unopened and unused (unless faulty) and returned in its original condition and packaging.

All web order purchases are to be returned to our store address unless arranged otherwise and the customer is responsible for all postage costs and for packaging the item safely and securely. Customers are to email info@essexbicycles with the order number and date of purchase before being returned to Essex Bicycles. This is required in order to process all refunds efficiently and without further delays.

DISTANCE SELLING
In addition to our Returns Policy, under the Consumer Contracts Regulations, you have the right to cancel your order up to 14 days from the day you receive your goods if you are an online, mail or telephone order customer. You then have a further 14 days from the date you notify the retailer of your cancellation to return the goods. Under the Consumer Rights Act you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund. However, this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).

FAULTY GOODS
Under the Consumer Rights Act you have an early right to reject goods that are unsatisfactory quality, unfit for purpose or not as described, and get a full refund. But this right is limited to 30 days from the date you took ownership of the goods (this could be the date of purchase or the date the goods were delivered to you - whichever is later).’

Merida Reacto 4000 - MY25 - Grey Silver

Season:2025

Brand:Merida

Code:P-Q070

Unadulterated aero road speed.

REACTO 4000 might be the most affordable aero bike in their range but is far from being an entry-level bike. Featuring a lightweight CF3 frame with race-proven geometry, the 4000 offers impressive comfort due to the generous tyre clearance (up to 30 mm tyres) and the fitted S-FLEX carbon seat post. At the same time, the latest super smooth mechanical 12-speed Shimano 105 groupset keeps shifting in braking and perfect check.

The latest version of the REACTO took the cycling press by storm. A long string of test wins, perfect scores and awards confirm their successful symbiosis of the race-proven DNA of the previous model with the latest trends and technologies. From serious racer via enthusiast to the ambitious road rider, the REACTO is a great bike for many people. Its outstanding aerodynamic performance, reduced weight, sharp handling and super quick acceleration makes it the perfect bike for criterium racers and sprinters.

Features:

  • Lightweight CF3 carbon aero frame (approx. 1,150 g - in size M)
  • Shimano 105 12-speed mechanical groupset
  • MERIDA EXPERT SL stem/MERIDA EXPERT CW handlebar combination
  • MERIDA S-FLEX carbon aero post
  • DISC COOLER technology and WIRE PORT cable integration
  • Seat post integrated rear light
Technical Information
  • Model Year
    2025
  • Frame
    REACTOa
    • Frame
      CF3 IV - carbon with the same geometry and aerodynamic profiling as the CF5 IV with a more budget-friendly carbon layup. Tapered headtube, Disc Cooler, BB86 BB standard, 142 x 12mm 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.
    CF3 IV
  • Material (Frame)
    Carbon
  • Max Wheelsize
    700x30C
  • Axle Standard
    100x12/ 142x12mm
  • Bottom Bracket Standard
    BB86,5
  • Frame Sizes
    XXS, XS, S, M, L, XL
  • Fork
    REACTO CF3 IV DISC
  • Material (Fork)
    Carbon
  • Rim
    MERIDA EXPERT CW
  • Inner Width (Rim)
    19mm
  • Height (Rim)
    30mm
  • Material (Rim)
    Aluminium
  • Tubeless Ready
    Yes (tubeless tape and valves not included)
  • Hubs
    Shimano HB-TC500 / Shimano HB-TC500-HL
  • Front Hub Width
    100x12mm
  • Front Hub Spoke Holes
    28
  • Front Hub Lock Type
    Centerlock
  • Rear Hub Width
    12-142mm
  • Rear Hub Spoke Holes
    28
  • Rear Hub Lock Type
    Centerlock
  • Front Tyre
    Continental Ultra Sport III
  • Front Tyre Size
    700x28C
  • Front Tyre Type
    Fold
  • Rear Tyre
    Continental Ultra Sport III
  • Rear Tyre Size
    700x28C
  • Rear Tyre Type
    Fold
  • Hubs
    MERIDA EXPERT SL
  • Hubs Features
    Including removable lever, 6/4mm allen key
  • Crank
    Shimano 105
  • Crank Teeth
    52-36
  • Crank Length
    165 mm-XXS, 170 mm-XS, 172.5 mm-S/M/L, 175 mm-XL
  • Bottom Bracket
    Shimano SM-BB72-41B
  • Bottom Bracket Type
    Pressfit 86.5
  • Cassette
    Shimano 105 R7101
  • Cassette Teeth
    11-34
  • Cassette Speed
    12 speed
  • Chain
    Shimano M6100-12
  • Shifters
    Shimano 105 disc
  • Front Derailleur
    Shimano 105
  • Rear Derailleur
    Shimano 105 GS
  • Brake Lever
    Shimano 105
  • Brakes
    Shimano 105 Hydraulic disc
  • Rotors
    Shimano RT54
  • Rotor Size
    160mm
  • Headset
    MERIDA TEAM SL
  • Headset Model
    VP-MRBHB (OP203 neck)
  • Stem
    MERIDA EXPERT SL 2PII
  • Stem Material
    Aluminium
  • Stem Angle
    -9°
  • Stem Size
    90 mm-XXS/XS, 100 mm-S, 110 mm-M/L, 120 mm-XL
  • Handlebar
    MERIDA EXPERT CW
  • Handlebar Material
    Aluminium
  • Handlebar Size
    380mm (XXS-XS), 400mm (M-L-XL)
  • Grip
    MERIDA ROAD Expert
  • Seat Post
    MERIDA TEAM CW
  • Seat Post Shape
    Aero shape
  • Seat Post Setback
    15mm
  • Seat Post Material
    Carbon
  • Seat Clamp
    MERIDA REACTO Aero
  • Saddle
    MERIDA EXPERT SL
  • Saddle Material
    6% recycled and 23% nature material
  • Saddle Features
    V-mount, incl. MERIDA minitool
Sizing Information
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